Home / 28,707.35-39,617.09-17,378.88

Finding the Fourth Proportional to 28,707.35, 39,617.09 and 17,378.88

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Solution

The fourth proportional to 28,707.35, 39,617.09 and 17,378.88 is: 23,983.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,707.35 : 39,617.09 = 17,378.88 : x
  2. Step 2: Convert to fraction form
    28,707.35/39,617.09 = 17,378.88/x
  3. Step 3: Cross multiply
    28,707.35x = 39,617.09 × 17,378.88
  4. Step 4: Simplify right side
    28,707.35x = 688,500,566.16
  5. Step 5: Solve for x
    x = 688,500,566.16/28,707.35
  6. Step 6: Final answer
    x = 23,983.43

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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.