Home / 38,921.64-53,712.18-22,155.72

Finding the Fourth Proportional to 38,921.64, 53,712.18 and 22,155.72

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Solution

The fourth proportional to 38,921.64, 53,712.18 and 22,155.72 is: 30,575.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,921.64 : 53,712.18 = 22,155.72 : x
  2. Step 2: Convert to fraction form
    38,921.64/53,712.18 = 22,155.72/x
  3. Step 3: Cross multiply
    38,921.64x = 53,712.18 × 22,155.72
  4. Step 4: Simplify right side
    38,921.64x = 1,190,032,020.67
  5. Step 5: Solve for x
    x = 1,190,032,020.67/38,921.64
  6. Step 6: Final answer
    x = 30,575.07

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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.