Home / 28,080.90-38,751.28-15,335.26

Finding the Fourth Proportional to 28,080.90, 38,751.28 and 15,335.26

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Solution

The fourth proportional to 28,080.90, 38,751.28 and 15,335.26 is: 21,162.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,080.90 : 38,751.28 = 15,335.26 : x
  2. Step 2: Convert to fraction form
    28,080.90/38,751.28 = 15,335.26/x
  3. Step 3: Cross multiply
    28,080.90x = 38,751.28 × 15,335.26
  4. Step 4: Simplify right side
    28,080.90x = 594,260,818.92
  5. Step 5: Solve for x
    x = 594,260,818.92/28,080.90
  6. Step 6: Final answer
    x = 21,162.46

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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.