Home / 25,260.71-37,780.31-17,639.69

Finding the Fourth Proportional to 25,260.71, 37,780.31 and 17,639.69

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Solution

The fourth proportional to 25,260.71, 37,780.31 and 17,639.69 is: 26,382.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,260.71 : 37,780.31 = 17,639.69 : x
  2. Step 2: Convert to fraction form
    25,260.71/37,780.31 = 17,639.69/x
  3. Step 3: Cross multiply
    25,260.71x = 37,780.31 × 17,639.69
  4. Step 4: Simplify right side
    25,260.71x = 666,432,679.40
  5. Step 5: Solve for x
    x = 666,432,679.40/25,260.71
  6. Step 6: Final answer
    x = 26,382.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.