Home / 34,246.13-47,261.45-20,815.20

Finding the Fourth Proportional to 34,246.13, 47,261.45 and 20,815.20

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Solution

The fourth proportional to 34,246.13, 47,261.45 and 20,815.20 is: 28,726.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,246.13 : 47,261.45 = 20,815.20 : x
  2. Step 2: Convert to fraction form
    34,246.13/47,261.45 = 20,815.20/x
  3. Step 3: Cross multiply
    34,246.13x = 47,261.45 × 20,815.20
  4. Step 4: Simplify right side
    34,246.13x = 983,756,586.08
  5. Step 5: Solve for x
    x = 983,756,586.08/34,246.13
  6. Step 6: Final answer
    x = 28,726.07

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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.