Home / 38,697.48-53,398.79-21,702.42

Finding the Fourth Proportional to 38,697.48, 53,398.79 and 21,702.42

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Solution

The fourth proportional to 38,697.48, 53,398.79 and 21,702.42 is: 29,947.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,697.48 : 53,398.79 = 21,702.42 : x
  2. Step 2: Convert to fraction form
    38,697.48/53,398.79 = 21,702.42/x
  3. Step 3: Cross multiply
    38,697.48x = 53,398.79 × 21,702.42
  4. Step 4: Simplify right side
    38,697.48x = 1,158,882,592.57
  5. Step 5: Solve for x
    x = 1,158,882,592.57/38,697.48
  6. Step 6: Final answer
    x = 29,947.24

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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.