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Finding the Fourth Proportional to 32,402.16, 44,720.64 and 20,461.68

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Solution

The fourth proportional to 32,402.16, 44,720.64 and 20,461.68 is: 28,240.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,402.16 : 44,720.64 = 20,461.68 : x
  2. Step 2: Convert to fraction form
    32,402.16/44,720.64 = 20,461.68/x
  3. Step 3: Cross multiply
    32,402.16x = 44,720.64 × 20,461.68
  4. Step 4: Simplify right side
    32,402.16x = 915,059,425.08
  5. Step 5: Solve for x
    x = 915,059,425.08/32,402.16
  6. Step 6: Final answer
    x = 28,240.69

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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.