Home / 42,309.76-63,470.04-14,217.76

Finding the Fourth Proportional to 42,309.76, 63,470.04 and 14,217.76

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Solution

The fourth proportional to 42,309.76, 63,470.04 and 14,217.76 is: 21,328.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,309.76 : 63,470.04 = 14,217.76 : x
  2. Step 2: Convert to fraction form
    42,309.76/63,470.04 = 14,217.76/x
  3. Step 3: Cross multiply
    42,309.76x = 63,470.04 × 14,217.76
  4. Step 4: Simplify right side
    42,309.76x = 902,401,795.91
  5. Step 5: Solve for x
    x = 902,401,795.91/42,309.76
  6. Step 6: Final answer
    x = 21,328.45

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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.