Home / 19,988.13-29,972.07-11,670.24

Finding the Fourth Proportional to 19,988.13, 29,972.07 and 11,670.24

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Solution

The fourth proportional to 19,988.13, 29,972.07 and 11,670.24 is: 17,499.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,988.13 : 29,972.07 = 11,670.24 : x
  2. Step 2: Convert to fraction form
    19,988.13/29,972.07 = 11,670.24/x
  3. Step 3: Cross multiply
    19,988.13x = 29,972.07 × 11,670.24
  4. Step 4: Simplify right side
    19,988.13x = 349,781,250.20
  5. Step 5: Solve for x
    x = 349,781,250.20/19,988.13
  6. Step 6: Final answer
    x = 17,499.45

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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.