Home / 38,567.60-53,228.21-21,572.78

Finding the Fourth Proportional to 38,567.60, 53,228.21 and 21,572.78

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Solution

The fourth proportional to 38,567.60, 53,228.21 and 21,572.78 is: 29,773.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,567.60 : 53,228.21 = 21,572.78 : x
  2. Step 2: Convert to fraction form
    38,567.60/53,228.21 = 21,572.78/x
  3. Step 3: Cross multiply
    38,567.60x = 53,228.21 × 21,572.78
  4. Step 4: Simplify right side
    38,567.60x = 1,148,280,796.10
  5. Step 5: Solve for x
    x = 1,148,280,796.10/38,567.60
  6. Step 6: Final answer
    x = 29,773.20

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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.