Home / 22,960.76-31,685.40-12,888.41

Finding the Fourth Proportional to 22,960.76, 31,685.40 and 12,888.41

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Solution

The fourth proportional to 22,960.76, 31,685.40 and 12,888.41 is: 17,785.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,960.76 : 31,685.40 = 12,888.41 : x
  2. Step 2: Convert to fraction form
    22,960.76/31,685.40 = 12,888.41/x
  3. Step 3: Cross multiply
    22,960.76x = 31,685.40 × 12,888.41
  4. Step 4: Simplify right side
    22,960.76x = 408,374,267.79
  5. Step 5: Solve for x
    x = 408,374,267.79/22,960.76
  6. Step 6: Final answer
    x = 17,785.75

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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.