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Finding the Fourth Proportional to 15,707.52, 23,509.44 and 13,979.52

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Solution

The fourth proportional to 15,707.52, 23,509.44 and 13,979.52 is: 20,923.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,707.52 : 23,509.44 = 13,979.52 : x
  2. Step 2: Convert to fraction form
    15,707.52/23,509.44 = 13,979.52/x
  3. Step 3: Cross multiply
    15,707.52x = 23,509.44 × 13,979.52
  4. Step 4: Simplify right side
    15,707.52x = 328,650,686.67
  5. Step 5: Solve for x
    x = 328,650,686.67/15,707.52
  6. Step 6: Final answer
    x = 20,923.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.