Home / 22,560.34-31,126.10-13,127.08

Finding the Fourth Proportional to 22,560.34, 31,126.10 and 13,127.08

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Solution

The fourth proportional to 22,560.34, 31,126.10 and 13,127.08 is: 18,111.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,560.34 : 31,126.10 = 13,127.08 : x
  2. Step 2: Convert to fraction form
    22,560.34/31,126.10 = 13,127.08/x
  3. Step 3: Cross multiply
    22,560.34x = 31,126.10 × 13,127.08
  4. Step 4: Simplify right side
    22,560.34x = 408,594,804.79
  5. Step 5: Solve for x
    x = 408,594,804.79/22,560.34
  6. Step 6: Final answer
    x = 18,111.20

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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.