Home / 22,491.24-31,009.02-18,443.20

Finding the Fourth Proportional to 22,491.24, 31,009.02 and 18,443.20

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Solution

The fourth proportional to 22,491.24, 31,009.02 and 18,443.20 is: 25,427.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,491.24 : 31,009.02 = 18,443.20 : x
  2. Step 2: Convert to fraction form
    22,491.24/31,009.02 = 18,443.20/x
  3. Step 3: Cross multiply
    22,491.24x = 31,009.02 × 18,443.20
  4. Step 4: Simplify right side
    22,491.24x = 571,905,557.66
  5. Step 5: Solve for x
    x = 571,905,557.66/22,491.24
  6. Step 6: Final answer
    x = 25,427.92

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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.