Home / 38,393.20-52,981.64-21,397.52

Finding the Fourth Proportional to 38,393.20, 52,981.64 and 21,397.52

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Solution

The fourth proportional to 38,393.20, 52,981.64 and 21,397.52 is: 29,528.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,393.20 : 52,981.64 = 21,397.52 : x
  2. Step 2: Convert to fraction form
    38,393.20/52,981.64 = 21,397.52/x
  3. Step 3: Cross multiply
    38,393.20x = 52,981.64 × 21,397.52
  4. Step 4: Simplify right side
    38,393.20x = 1,133,675,701.53
  5. Step 5: Solve for x
    x = 1,133,675,701.53/38,393.20
  6. Step 6: Final answer
    x = 29,528.03

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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.