Home / 20,574.64-30,857.10-9,474.40

Finding the Fourth Proportional to 20,574.64, 30,857.10 and 9,474.40

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Solution

The fourth proportional to 20,574.64, 30,857.10 and 9,474.40 is: 14,209.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,574.64 : 30,857.10 = 9,474.40 : x
  2. Step 2: Convert to fraction form
    20,574.64/30,857.10 = 9,474.40/x
  3. Step 3: Cross multiply
    20,574.64x = 30,857.10 × 9,474.40
  4. Step 4: Simplify right side
    20,574.64x = 292,352,508.24
  5. Step 5: Solve for x
    x = 292,352,508.24/20,574.64
  6. Step 6: Final answer
    x = 14,209.36

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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.