Home / 32,513.76-48,671.28-21,398.40

Finding the Fourth Proportional to 32,513.76, 48,671.28 and 21,398.40

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Solution

The fourth proportional to 32,513.76, 48,671.28 and 21,398.40 is: 32,032.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,513.76 : 48,671.28 = 21,398.40 : x
  2. Step 2: Convert to fraction form
    32,513.76/48,671.28 = 21,398.40/x
  3. Step 3: Cross multiply
    32,513.76x = 48,671.28 × 21,398.40
  4. Step 4: Simplify right side
    32,513.76x = 1,041,487,517.95
  5. Step 5: Solve for x
    x = 1,041,487,517.95/32,513.76
  6. Step 6: Final answer
    x = 32,032.21

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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.