Home / 29,487.69-40,681.85-18,875.61

Finding the Fourth Proportional to 29,487.69, 40,681.85 and 18,875.61

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Solution

The fourth proportional to 29,487.69, 40,681.85 and 18,875.61 is: 26,041.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,487.69 : 40,681.85 = 18,875.61 : x
  2. Step 2: Convert to fraction form
    29,487.69/40,681.85 = 18,875.61/x
  3. Step 3: Cross multiply
    29,487.69x = 40,681.85 × 18,875.61
  4. Step 4: Simplify right side
    29,487.69x = 767,894,640.30
  5. Step 5: Solve for x
    x = 767,894,640.30/29,487.69
  6. Step 6: Final answer
    x = 26,041.19

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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.