Home / 22,670.46-31,281.66-13,106.79

Finding the Fourth Proportional to 22,670.46, 31,281.66 and 13,106.79

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Solution

The fourth proportional to 22,670.46, 31,281.66 and 13,106.79 is: 18,085.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,670.46 : 31,281.66 = 13,106.79 : x
  2. Step 2: Convert to fraction form
    22,670.46/31,281.66 = 13,106.79/x
  3. Step 3: Cross multiply
    22,670.46x = 31,281.66 × 13,106.79
  4. Step 4: Simplify right side
    22,670.46x = 410,002,148.47
  5. Step 5: Solve for x
    x = 410,002,148.47/22,670.46
  6. Step 6: Final answer
    x = 18,085.30

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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.