Home / 22,652.74-31,264.48-13,221.28

Finding the Fourth Proportional to 22,652.74, 31,264.48 and 13,221.28

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Solution

The fourth proportional to 22,652.74, 31,264.48 and 13,221.28 is: 18,247.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,652.74 : 31,264.48 = 13,221.28 : x
  2. Step 2: Convert to fraction form
    22,652.74/31,264.48 = 13,221.28/x
  3. Step 3: Cross multiply
    22,652.74x = 31,264.48 × 13,221.28
  4. Step 4: Simplify right side
    22,652.74x = 413,356,444.13
  5. Step 5: Solve for x
    x = 413,356,444.13/22,652.74
  6. Step 6: Final answer
    x = 18,247.53

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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.