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Finding the Fourth Proportional to 32,859, 45,356.22 and 21,535.74

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Solution

The fourth proportional to 32,859, 45,356.22 and 21,535.74 is: 29,726.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,859 : 45,356.22 = 21,535.74 : x
  2. Step 2: Convert to fraction form
    32,859/45,356.22 = 21,535.74/x
  3. Step 3: Cross multiply
    32,859x = 45,356.22 × 21,535.74
  4. Step 4: Simplify right side
    32,859x = 976,779,761.30
  5. Step 5: Solve for x
    x = 976,779,761.30/32,859
  6. Step 6: Final answer
    x = 29,726.40

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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.