Home / 22,689.41-31,314.18-13,740.03

Finding the Fourth Proportional to 22,689.41, 31,314.18 and 13,740.03

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Solution

The fourth proportional to 22,689.41, 31,314.18 and 13,740.03 is: 18,962.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,689.41 : 31,314.18 = 13,740.03 : x
  2. Step 2: Convert to fraction form
    22,689.41/31,314.18 = 13,740.03/x
  3. Step 3: Cross multiply
    22,689.41x = 31,314.18 × 13,740.03
  4. Step 4: Simplify right side
    22,689.41x = 430,257,772.63
  5. Step 5: Solve for x
    x = 430,257,772.63/22,689.41
  6. Step 6: Final answer
    x = 18,962.94

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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.