Home / 38,761.55-53,490.25-21,765.93

Finding the Fourth Proportional to 38,761.55, 53,490.25 and 21,765.93

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Solution

The fourth proportional to 38,761.55, 53,490.25 and 21,765.93 is: 30,036.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,761.55 : 53,490.25 = 21,765.93 : x
  2. Step 2: Convert to fraction form
    38,761.55/53,490.25 = 21,765.93/x
  3. Step 3: Cross multiply
    38,761.55x = 53,490.25 × 21,765.93
  4. Step 4: Simplify right side
    38,761.55x = 1,164,265,037.18
  5. Step 5: Solve for x
    x = 1,164,265,037.18/38,761.55
  6. Step 6: Final answer
    x = 30,036.60

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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.