Home / 38,434.60-57,655.74-11,780.28

Finding the Fourth Proportional to 38,434.60, 57,655.74 and 11,780.28

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Solution

The fourth proportional to 38,434.60, 57,655.74 and 11,780.28 is: 17,671.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,434.60 : 57,655.74 = 11,780.28 : x
  2. Step 2: Convert to fraction form
    38,434.60/57,655.74 = 11,780.28/x
  3. Step 3: Cross multiply
    38,434.60x = 57,655.74 × 11,780.28
  4. Step 4: Simplify right side
    38,434.60x = 679,200,760.81
  5. Step 5: Solve for x
    x = 679,200,760.81/38,434.60
  6. Step 6: Final answer
    x = 17,671.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.