Home / 39,931.48-59,895.12-11,851.72

Finding the Fourth Proportional to 39,931.48, 59,895.12 and 11,851.72

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Solution

The fourth proportional to 39,931.48, 59,895.12 and 11,851.72 is: 17,776.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,931.48 : 59,895.12 = 11,851.72 : x
  2. Step 2: Convert to fraction form
    39,931.48/59,895.12 = 11,851.72/x
  3. Step 3: Cross multiply
    39,931.48x = 59,895.12 × 11,851.72
  4. Step 4: Simplify right side
    39,931.48x = 709,860,191.61
  5. Step 5: Solve for x
    x = 709,860,191.61/39,931.48
  6. Step 6: Final answer
    x = 17,776.96

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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.