Home / 34,066.76-47,017.10-20,455.72

Finding the Fourth Proportional to 34,066.76, 47,017.10 and 20,455.72

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Solution

The fourth proportional to 34,066.76, 47,017.10 and 20,455.72 is: 28,231.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,066.76 : 47,017.10 = 20,455.72 : x
  2. Step 2: Convert to fraction form
    34,066.76/47,017.10 = 20,455.72/x
  3. Step 3: Cross multiply
    34,066.76x = 47,017.10 × 20,455.72
  4. Step 4: Simplify right side
    34,066.76x = 961,768,632.81
  5. Step 5: Solve for x
    x = 961,768,632.81/34,066.76
  6. Step 6: Final answer
    x = 28,231.88

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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.