Home / 19,621.46-29,422.95-7,132.68

Finding the Fourth Proportional to 19,621.46, 29,422.95 and 7,132.68

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Solution

The fourth proportional to 19,621.46, 29,422.95 and 7,132.68 is: 10,695.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,621.46 : 29,422.95 = 7,132.68 : x
  2. Step 2: Convert to fraction form
    19,621.46/29,422.95 = 7,132.68/x
  3. Step 3: Cross multiply
    19,621.46x = 29,422.95 × 7,132.68
  4. Step 4: Simplify right side
    19,621.46x = 209,864,487.01
  5. Step 5: Solve for x
    x = 209,864,487.01/19,621.46
  6. Step 6: Final answer
    x = 10,695.66

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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.