Home / 39,931.56-59,895.18-12,229.64

Finding the Fourth Proportional to 39,931.56, 59,895.18 and 12,229.64

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Solution

The fourth proportional to 39,931.56, 59,895.18 and 12,229.64 is: 18,343.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,931.56 : 59,895.18 = 12,229.64 : x
  2. Step 2: Convert to fraction form
    39,931.56/59,895.18 = 12,229.64/x
  3. Step 3: Cross multiply
    39,931.56x = 59,895.18 × 12,229.64
  4. Step 4: Simplify right side
    39,931.56x = 732,496,489.14
  5. Step 5: Solve for x
    x = 732,496,489.14/39,931.56
  6. Step 6: Final answer
    x = 18,343.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.