Home / 42,691.80-64,070.28-19,334.64

Finding the Fourth Proportional to 42,691.80, 64,070.28 and 19,334.64

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Solution

The fourth proportional to 42,691.80, 64,070.28 and 19,334.64 is: 29,016.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,691.80 : 64,070.28 = 19,334.64 : x
  2. Step 2: Convert to fraction form
    42,691.80/64,070.28 = 19,334.64/x
  3. Step 3: Cross multiply
    42,691.80x = 64,070.28 × 19,334.64
  4. Step 4: Simplify right side
    42,691.80x = 1,238,775,798.50
  5. Step 5: Solve for x
    x = 1,238,775,798.50/42,691.80
  6. Step 6: Final answer
    x = 29,016.72

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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.