Home / 22,551.59-31,122.75-12,480.45

Finding the Fourth Proportional to 22,551.59, 31,122.75 and 12,480.45

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Solution

The fourth proportional to 22,551.59, 31,122.75 and 12,480.45 is: 17,223.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,551.59 : 31,122.75 = 12,480.45 : x
  2. Step 2: Convert to fraction form
    22,551.59/31,122.75 = 12,480.45/x
  3. Step 3: Cross multiply
    22,551.59x = 31,122.75 × 12,480.45
  4. Step 4: Simplify right side
    22,551.59x = 388,425,925.24
  5. Step 5: Solve for x
    x = 388,425,925.24/22,551.59
  6. Step 6: Final answer
    x = 17,223.88

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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.