Home / 22,757.49-31,406.40-12,686.01

Finding the Fourth Proportional to 22,757.49, 31,406.40 and 12,686.01

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Solution

The fourth proportional to 22,757.49, 31,406.40 and 12,686.01 is: 17,507.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,757.49 : 31,406.40 = 12,686.01 : x
  2. Step 2: Convert to fraction form
    22,757.49/31,406.40 = 12,686.01/x
  3. Step 3: Cross multiply
    22,757.49x = 31,406.40 × 12,686.01
  4. Step 4: Simplify right side
    22,757.49x = 398,421,904.46
  5. Step 5: Solve for x
    x = 398,421,904.46/22,757.49
  6. Step 6: Final answer
    x = 17,507.29

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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.