Home / 38,835.60-53,611.20-29,279.40

Finding the Fourth Proportional to 38,835.60, 53,611.20 and 29,279.40

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Solution

The fourth proportional to 38,835.60, 53,611.20 and 29,279.40 is: 40,419.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,835.60 : 53,611.20 = 29,279.40 : x
  2. Step 2: Convert to fraction form
    38,835.60/53,611.20 = 29,279.40/x
  3. Step 3: Cross multiply
    38,835.60x = 53,611.20 × 29,279.40
  4. Step 4: Simplify right side
    38,835.60x = 1,569,703,769.28
  5. Step 5: Solve for x
    x = 1,569,703,769.28/38,835.60
  6. Step 6: Final answer
    x = 40,419.20

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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.