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Finding the Fourth Proportional to 38,472.03, 53,094.06 and 21,479.61

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Solution

The fourth proportional to 38,472.03, 53,094.06 and 21,479.61 is: 29,643.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,472.03 : 53,094.06 = 21,479.61 : x
  2. Step 2: Convert to fraction form
    38,472.03/53,094.06 = 21,479.61/x
  3. Step 3: Cross multiply
    38,472.03x = 53,094.06 × 21,479.61
  4. Step 4: Simplify right side
    38,472.03x = 1,140,439,702.12
  5. Step 5: Solve for x
    x = 1,140,439,702.12/38,472.03
  6. Step 6: Final answer
    x = 29,643.35

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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.