Home / 42,345.96-63,519.02-12,772.26

Finding the Fourth Proportional to 42,345.96, 63,519.02 and 12,772.26

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Solution

The fourth proportional to 42,345.96, 63,519.02 and 12,772.26 is: 19,158.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,345.96 : 63,519.02 = 12,772.26 : x
  2. Step 2: Convert to fraction form
    42,345.96/63,519.02 = 12,772.26/x
  3. Step 3: Cross multiply
    42,345.96x = 63,519.02 × 12,772.26
  4. Step 4: Simplify right side
    42,345.96x = 811,281,374.52
  5. Step 5: Solve for x
    x = 811,281,374.52/42,345.96
  6. Step 6: Final answer
    x = 19,158.41

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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.