Home / 28,895.42-39,875.70-16,149.13

Finding the Fourth Proportional to 28,895.42, 39,875.70 and 16,149.13

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Solution

The fourth proportional to 28,895.42, 39,875.70 and 16,149.13 is: 22,285.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,895.42 : 39,875.70 = 16,149.13 : x
  2. Step 2: Convert to fraction form
    28,895.42/39,875.70 = 16,149.13/x
  3. Step 3: Cross multiply
    28,895.42x = 39,875.70 × 16,149.13
  4. Step 4: Simplify right side
    28,895.42x = 643,957,763.45
  5. Step 5: Solve for x
    x = 643,957,763.45/28,895.42
  6. Step 6: Final answer
    x = 22,285.81

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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.