Home / 21,149.02-31,726.46-7,110.15

Finding the Fourth Proportional to 21,149.02, 31,726.46 and 7,110.15

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Solution

The fourth proportional to 21,149.02, 31,726.46 and 7,110.15 is: 10,666.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,149.02 : 31,726.46 = 7,110.15 : x
  2. Step 2: Convert to fraction form
    21,149.02/31,726.46 = 7,110.15/x
  3. Step 3: Cross multiply
    21,149.02x = 31,726.46 × 7,110.15
  4. Step 4: Simplify right side
    21,149.02x = 225,579,695.39
  5. Step 5: Solve for x
    x = 225,579,695.39/21,149.02
  6. Step 6: Final answer
    x = 10,666.20

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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.