Home / 20,510.03-28,298.62-12,549.35

Finding the Fourth Proportional to 20,510.03, 28,298.62 and 12,549.35

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Solution

The fourth proportional to 20,510.03, 28,298.62 and 12,549.35 is: 17,314.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,510.03 : 28,298.62 = 12,549.35 : x
  2. Step 2: Convert to fraction form
    20,510.03/28,298.62 = 12,549.35/x
  3. Step 3: Cross multiply
    20,510.03x = 28,298.62 × 12,549.35
  4. Step 4: Simplify right side
    20,510.03x = 355,129,286.90
  5. Step 5: Solve for x
    x = 355,129,286.90/20,510.03
  6. Step 6: Final answer
    x = 17,314.91

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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.