Home / 28,581.40-39,443.76-17,250.72

Finding the Fourth Proportional to 28,581.40, 39,443.76 and 17,250.72

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Solution

The fourth proportional to 28,581.40, 39,443.76 and 17,250.72 is: 23,806.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,581.40 : 39,443.76 = 17,250.72 : x
  2. Step 2: Convert to fraction form
    28,581.40/39,443.76 = 17,250.72/x
  3. Step 3: Cross multiply
    28,581.40x = 39,443.76 × 17,250.72
  4. Step 4: Simplify right side
    28,581.40x = 680,433,259.51
  5. Step 5: Solve for x
    x = 680,433,259.51/28,581.40
  6. Step 6: Final answer
    x = 23,806.86

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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.