Home / 38,585.12-53,248.48-21,588.80

Finding the Fourth Proportional to 38,585.12, 53,248.48 and 21,588.80

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Solution

The fourth proportional to 38,585.12, 53,248.48 and 21,588.80 is: 29,793.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,585.12 : 53,248.48 = 21,588.80 : x
  2. Step 2: Convert to fraction form
    38,585.12/53,248.48 = 21,588.80/x
  3. Step 3: Cross multiply
    38,585.12x = 53,248.48 × 21,588.80
  4. Step 4: Simplify right side
    38,585.12x = 1,149,570,785.02
  5. Step 5: Solve for x
    x = 1,149,570,785.02/38,585.12
  6. Step 6: Final answer
    x = 29,793.11

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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.