Home / 42,557.52-63,808.86-20,370.36

Finding the Fourth Proportional to 42,557.52, 63,808.86 and 20,370.36

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Solution

The fourth proportional to 42,557.52, 63,808.86 and 20,370.36 is: 30,542.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,557.52 : 63,808.86 = 20,370.36 : x
  2. Step 2: Convert to fraction form
    42,557.52/63,808.86 = 20,370.36/x
  3. Step 3: Cross multiply
    42,557.52x = 63,808.86 × 20,370.36
  4. Step 4: Simplify right side
    42,557.52x = 1,299,809,449.39
  5. Step 5: Solve for x
    x = 1,299,809,449.39/42,557.52
  6. Step 6: Final answer
    x = 30,542.42

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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.