Home / 42,215.06-63,330.75-12,630.35

Finding the Fourth Proportional to 42,215.06, 63,330.75 and 12,630.35

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Solution

The fourth proportional to 42,215.06, 63,330.75 and 12,630.35 is: 18,947.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,215.06 : 63,330.75 = 12,630.35 : x
  2. Step 2: Convert to fraction form
    42,215.06/63,330.75 = 12,630.35/x
  3. Step 3: Cross multiply
    42,215.06x = 63,330.75 × 12,630.35
  4. Step 4: Simplify right side
    42,215.06x = 799,889,221.61
  5. Step 5: Solve for x
    x = 799,889,221.61/42,215.06
  6. Step 6: Final answer
    x = 18,947.96

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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.