Home / 28,707.65-39,617.56-15,964.44

Finding the Fourth Proportional to 28,707.65, 39,617.56 and 15,964.44

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Solution

The fourth proportional to 28,707.65, 39,617.56 and 15,964.44 is: 22,031.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,707.65 : 39,617.56 = 15,964.44 : x
  2. Step 2: Convert to fraction form
    28,707.65/39,617.56 = 15,964.44/x
  3. Step 3: Cross multiply
    28,707.65x = 39,617.56 × 15,964.44
  4. Step 4: Simplify right side
    28,707.65x = 632,472,179.52
  5. Step 5: Solve for x
    x = 632,472,179.52/28,707.65
  6. Step 6: Final answer
    x = 22,031.49

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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.