Home / 28,688.38-39,593.67-16,113.13

Finding the Fourth Proportional to 28,688.38, 39,593.67 and 16,113.13

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Solution

The fourth proportional to 28,688.38, 39,593.67 and 16,113.13 is: 22,238.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,688.38 : 39,593.67 = 16,113.13 : x
  2. Step 2: Convert to fraction form
    28,688.38/39,593.67 = 16,113.13/x
  3. Step 3: Cross multiply
    28,688.38x = 39,593.67 × 16,113.13
  4. Step 4: Simplify right side
    28,688.38x = 637,977,951.89
  5. Step 5: Solve for x
    x = 637,977,951.89/28,688.38
  6. Step 6: Final answer
    x = 22,238.20

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Half scale
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Double scale
Find fourth proportional to 28,689.38, 39,595.05 and 16,114.13
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.