Home / 34,291.83-47,318.42-20,680.58

Finding the Fourth Proportional to 34,291.83, 47,318.42 and 20,680.58

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Solution

The fourth proportional to 34,291.83, 47,318.42 and 20,680.58 is: 28,536.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,291.83 : 47,318.42 = 20,680.58 : x
  2. Step 2: Convert to fraction form
    34,291.83/47,318.42 = 20,680.58/x
  3. Step 3: Cross multiply
    34,291.83x = 47,318.42 × 20,680.58
  4. Step 4: Simplify right side
    34,291.83x = 978,572,030.29
  5. Step 5: Solve for x
    x = 978,572,030.29/34,291.83
  6. Step 6: Final answer
    x = 28,536.59

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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.