Home / 28,530.28-39,373.86-15,959.08

Finding the Fourth Proportional to 28,530.28, 39,373.86 and 15,959.08

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Solution

The fourth proportional to 28,530.28, 39,373.86 and 15,959.08 is: 22,024.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,530.28 : 39,373.86 = 15,959.08 : x
  2. Step 2: Convert to fraction form
    28,530.28/39,373.86 = 15,959.08/x
  3. Step 3: Cross multiply
    28,530.28x = 39,373.86 × 15,959.08
  4. Step 4: Simplify right side
    28,530.28x = 628,370,581.65
  5. Step 5: Solve for x
    x = 628,370,581.65/28,530.28
  6. Step 6: Final answer
    x = 22,024.69

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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.