Home / 42,131.04-63,208.38-18,440.66

Finding the Fourth Proportional to 42,131.04, 63,208.38 and 18,440.66

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Solution

The fourth proportional to 42,131.04, 63,208.38 and 18,440.66 is: 27,666.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,131.04 : 63,208.38 = 18,440.66 : x
  2. Step 2: Convert to fraction form
    42,131.04/63,208.38 = 18,440.66/x
  3. Step 3: Cross multiply
    42,131.04x = 63,208.38 × 18,440.66
  4. Step 4: Simplify right side
    42,131.04x = 1,165,604,244.73
  5. Step 5: Solve for x
    x = 1,165,604,244.73/42,131.04
  6. Step 6: Final answer
    x = 27,666.16

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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.