Home / 22,564.80-31,139.02-12,493.21

Finding the Fourth Proportional to 22,564.80, 31,139.02 and 12,493.21

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Solution

The fourth proportional to 22,564.80, 31,139.02 and 12,493.21 is: 17,240.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,564.80 : 31,139.02 = 12,493.21 : x
  2. Step 2: Convert to fraction form
    22,564.80/31,139.02 = 12,493.21/x
  3. Step 3: Cross multiply
    22,564.80x = 31,139.02 × 12,493.21
  4. Step 4: Simplify right side
    22,564.80x = 389,026,316.05
  5. Step 5: Solve for x
    x = 389,026,316.05/22,564.80
  6. Step 6: Final answer
    x = 17,240.41

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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.