Home / 42,927.12-64,412.64-20,759.52

Finding the Fourth Proportional to 42,927.12, 64,412.64 and 20,759.52

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Solution

The fourth proportional to 42,927.12, 64,412.64 and 20,759.52 is: 31,149.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,927.12 : 64,412.64 = 20,759.52 : x
  2. Step 2: Convert to fraction form
    42,927.12/64,412.64 = 20,759.52/x
  3. Step 3: Cross multiply
    42,927.12x = 64,412.64 × 20,759.52
  4. Step 4: Simplify right side
    42,927.12x = 1,337,175,488.33
  5. Step 5: Solve for x
    x = 1,337,175,488.33/42,927.12
  6. Step 6: Final answer
    x = 31,149.90

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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.