Home / 21,001.52-31,502.28-16,102.64

Finding the Fourth Proportional to 21,001.52, 31,502.28 and 16,102.64

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Solution

The fourth proportional to 21,001.52, 31,502.28 and 16,102.64 is: 24,153.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,001.52 : 31,502.28 = 16,102.64 : x
  2. Step 2: Convert to fraction form
    21,001.52/31,502.28 = 16,102.64/x
  3. Step 3: Cross multiply
    21,001.52x = 31,502.28 × 16,102.64
  4. Step 4: Simplify right side
    21,001.52x = 507,269,874.02
  5. Step 5: Solve for x
    x = 507,269,874.02/21,001.52
  6. Step 6: Final answer
    x = 24,153.96

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1.5x scale

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.