Home / 21,701.52-29,955.40-15,432.08

Finding the Fourth Proportional to 21,701.52, 29,955.40 and 15,432.08

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Solution

The fourth proportional to 21,701.52, 29,955.40 and 15,432.08 is: 21,301.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,701.52 : 29,955.40 = 15,432.08 : x
  2. Step 2: Convert to fraction form
    21,701.52/29,955.40 = 15,432.08/x
  3. Step 3: Cross multiply
    21,701.52x = 29,955.40 × 15,432.08
  4. Step 4: Simplify right side
    21,701.52x = 462,274,129.23
  5. Step 5: Solve for x
    x = 462,274,129.23/21,701.52
  6. Step 6: Final answer
    x = 21,301.46

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.