Home / 39,966.06-59,956.38-21,255.06

Finding the Fourth Proportional to 39,966.06, 59,956.38 and 21,255.06

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Solution

The fourth proportional to 39,966.06, 59,956.38 and 21,255.06 is: 31,886.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,966.06 : 59,956.38 = 21,255.06 : x
  2. Step 2: Convert to fraction form
    39,966.06/59,956.38 = 21,255.06/x
  3. Step 3: Cross multiply
    39,966.06x = 59,956.38 × 21,255.06
  4. Step 4: Simplify right side
    39,966.06x = 1,274,376,454.28
  5. Step 5: Solve for x
    x = 1,274,376,454.28/39,966.06
  6. Step 6: Final answer
    x = 31,886.47

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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.