Home / 34,343.78-47,417.56-21,442.72

Finding the Fourth Proportional to 34,343.78, 47,417.56 and 21,442.72

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Solution

The fourth proportional to 34,343.78, 47,417.56 and 21,442.72 is: 29,605.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,343.78 : 47,417.56 = 21,442.72 : x
  2. Step 2: Convert to fraction form
    34,343.78/47,417.56 = 21,442.72/x
  3. Step 3: Cross multiply
    34,343.78x = 47,417.56 × 21,442.72
  4. Step 4: Simplify right side
    34,343.78x = 1,016,761,462.16
  5. Step 5: Solve for x
    x = 1,016,761,462.16/34,343.78
  6. Step 6: Final answer
    x = 29,605.40

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1.5x scale

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.