Home / 28,822.38-39,774.95-16,247.13

Finding the Fourth Proportional to 28,822.38, 39,774.95 and 16,247.13

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Solution

The fourth proportional to 28,822.38, 39,774.95 and 16,247.13 is: 22,421.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,822.38 : 39,774.95 = 16,247.13 : x
  2. Step 2: Convert to fraction form
    28,822.38/39,774.95 = 16,247.13/x
  3. Step 3: Cross multiply
    28,822.38x = 39,774.95 × 16,247.13
  4. Step 4: Simplify right side
    28,822.38x = 646,228,783.39
  5. Step 5: Solve for x
    x = 646,228,783.39/28,822.38
  6. Step 6: Final answer
    x = 22,421.08

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Double scale
Find fourth proportional to 28,823.38, 39,776.33 and 16,248.13
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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.