Home / 22,642.12-31,247.94-15,572.44

Finding the Fourth Proportional to 22,642.12, 31,247.94 and 15,572.44

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Solution

The fourth proportional to 22,642.12, 31,247.94 and 15,572.44 is: 21,491.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,642.12 : 31,247.94 = 15,572.44 : x
  2. Step 2: Convert to fraction form
    22,642.12/31,247.94 = 15,572.44/x
  3. Step 3: Cross multiply
    22,642.12x = 31,247.94 × 15,572.44
  4. Step 4: Simplify right side
    22,642.12x = 486,606,670.77
  5. Step 5: Solve for x
    x = 486,606,670.77/22,642.12
  6. Step 6: Final answer
    x = 21,491.22

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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.