Home / 42,442.34-63,670.11-12,853.13

Finding the Fourth Proportional to 42,442.34, 63,670.11 and 12,853.13

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Solution

The fourth proportional to 42,442.34, 63,670.11 and 12,853.13 is: 19,281.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,442.34 : 63,670.11 = 12,853.13 : x
  2. Step 2: Convert to fraction form
    42,442.34/63,670.11 = 12,853.13/x
  3. Step 3: Cross multiply
    42,442.34x = 63,670.11 × 12,853.13
  4. Step 4: Simplify right side
    42,442.34x = 818,360,200.94
  5. Step 5: Solve for x
    x = 818,360,200.94/42,442.34
  6. Step 6: Final answer
    x = 19,281.69

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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.