Home / 20,271.27-30,394.49-7,125.15

Finding the Fourth Proportional to 20,271.27, 30,394.49 and 7,125.15

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Solution

The fourth proportional to 20,271.27, 30,394.49 and 7,125.15 is: 10,683.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,271.27 : 30,394.49 = 7,125.15 : x
  2. Step 2: Convert to fraction form
    20,271.27/30,394.49 = 7,125.15/x
  3. Step 3: Cross multiply
    20,271.27x = 30,394.49 × 7,125.15
  4. Step 4: Simplify right side
    20,271.27x = 216,565,264.80
  5. Step 5: Solve for x
    x = 216,565,264.80/20,271.27
  6. Step 6: Final answer
    x = 10,683.36

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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.