Home / 20,760.32-28,653.16-13,002.73

Finding the Fourth Proportional to 20,760.32, 28,653.16 and 13,002.73

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Solution

The fourth proportional to 20,760.32, 28,653.16 and 13,002.73 is: 17,946.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,760.32 : 28,653.16 = 13,002.73 : x
  2. Step 2: Convert to fraction form
    20,760.32/28,653.16 = 13,002.73/x
  3. Step 3: Cross multiply
    20,760.32x = 28,653.16 × 13,002.73
  4. Step 4: Simplify right side
    20,760.32x = 372,569,303.13
  5. Step 5: Solve for x
    x = 372,569,303.13/20,760.32
  6. Step 6: Final answer
    x = 17,946.22

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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.