Home / 31,437.65-43,384.78-17,290.87

Finding the Fourth Proportional to 31,437.65, 43,384.78 and 17,290.87

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Solution

The fourth proportional to 31,437.65, 43,384.78 and 17,290.87 is: 23,861.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,437.65 : 43,384.78 = 17,290.87 : x
  2. Step 2: Convert to fraction form
    31,437.65/43,384.78 = 17,290.87/x
  3. Step 3: Cross multiply
    31,437.65x = 43,384.78 × 17,290.87
  4. Step 4: Simplify right side
    31,437.65x = 750,160,504.11
  5. Step 5: Solve for x
    x = 750,160,504.11/31,437.65
  6. Step 6: Final answer
    x = 23,861.85

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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.