Home / 22,624.45-31,221.14-12,415.45

Finding the Fourth Proportional to 22,624.45, 31,221.14 and 12,415.45

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Solution

The fourth proportional to 22,624.45, 31,221.14 and 12,415.45 is: 17,132.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,624.45 : 31,221.14 = 12,415.45 : x
  2. Step 2: Convert to fraction form
    22,624.45/31,221.14 = 12,415.45/x
  3. Step 3: Cross multiply
    22,624.45x = 31,221.14 × 12,415.45
  4. Step 4: Simplify right side
    22,624.45x = 387,624,502.61
  5. Step 5: Solve for x
    x = 387,624,502.61/22,624.45
  6. Step 6: Final answer
    x = 17,132.99

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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.