Home / 15,510.30-21,422.25-10,229.10

Finding the Fourth Proportional to 15,510.30, 21,422.25 and 10,229.10

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Solution

The fourth proportional to 15,510.30, 21,422.25 and 10,229.10 is: 14,128.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,510.30 : 21,422.25 = 10,229.10 : x
  2. Step 2: Convert to fraction form
    15,510.30/21,422.25 = 10,229.10/x
  3. Step 3: Cross multiply
    15,510.30x = 21,422.25 × 10,229.10
  4. Step 4: Simplify right side
    15,510.30x = 219,130,337.48
  5. Step 5: Solve for x
    x = 219,130,337.48/15,510.30
  6. Step 6: Final answer
    x = 14,128.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.