Home / 38,402.91-52,989.57-21,403.42

Finding the Fourth Proportional to 38,402.91, 52,989.57 and 21,403.42

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Solution

The fourth proportional to 38,402.91, 52,989.57 and 21,403.42 is: 29,533.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,402.91 : 52,989.57 = 21,403.42 : x
  2. Step 2: Convert to fraction form
    38,402.91/52,989.57 = 21,403.42/x
  3. Step 3: Cross multiply
    38,402.91x = 52,989.57 × 21,403.42
  4. Step 4: Simplify right side
    38,402.91x = 1,134,157,889.86
  5. Step 5: Solve for x
    x = 1,134,157,889.86/38,402.91
  6. Step 6: Final answer
    x = 29,533.12

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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.