Home / 22,689.47-31,314.26-13,740.09

Finding the Fourth Proportional to 22,689.47, 31,314.26 and 13,740.09

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Solution

The fourth proportional to 22,689.47, 31,314.26 and 13,740.09 is: 18,963.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,689.47 : 31,314.26 = 13,740.09 : x
  2. Step 2: Convert to fraction form
    22,689.47/31,314.26 = 13,740.09/x
  3. Step 3: Cross multiply
    22,689.47x = 31,314.26 × 13,740.09
  4. Step 4: Simplify right side
    22,689.47x = 430,260,594.11
  5. Step 5: Solve for x
    x = 430,260,594.11/22,689.47
  6. Step 6: Final answer
    x = 18,963.01

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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.