Home / 42,218.08-63,285.36-19,992.40

Finding the Fourth Proportional to 42,218.08, 63,285.36 and 19,992.40

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Solution

The fourth proportional to 42,218.08, 63,285.36 and 19,992.40 is: 29,968.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,218.08 : 63,285.36 = 19,992.40 : x
  2. Step 2: Convert to fraction form
    42,218.08/63,285.36 = 19,992.40/x
  3. Step 3: Cross multiply
    42,218.08x = 63,285.36 × 19,992.40
  4. Step 4: Simplify right side
    42,218.08x = 1,265,226,231.26
  5. Step 5: Solve for x
    x = 1,265,226,231.26/42,218.08
  6. Step 6: Final answer
    x = 29,968.82

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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.