Home / 42,002.64-57,961.80-23,139.60

Finding the Fourth Proportional to 42,002.64, 57,961.80 and 23,139.60

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Solution

The fourth proportional to 42,002.64, 57,961.80 and 23,139.60 is: 31,931.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,002.64 : 57,961.80 = 23,139.60 : x
  2. Step 2: Convert to fraction form
    42,002.64/57,961.80 = 23,139.60/x
  3. Step 3: Cross multiply
    42,002.64x = 57,961.80 × 23,139.60
  4. Step 4: Simplify right side
    42,002.64x = 1,341,212,867.28
  5. Step 5: Solve for x
    x = 1,341,212,867.28/42,002.64
  6. Step 6: Final answer
    x = 31,931.63

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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.