Home / 34,306.78-47,345.10-20,164.18

Finding the Fourth Proportional to 34,306.78, 47,345.10 and 20,164.18

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Solution

The fourth proportional to 34,306.78, 47,345.10 and 20,164.18 is: 27,827.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,306.78 : 47,345.10 = 20,164.18 : x
  2. Step 2: Convert to fraction form
    34,306.78/47,345.10 = 20,164.18/x
  3. Step 3: Cross multiply
    34,306.78x = 47,345.10 × 20,164.18
  4. Step 4: Simplify right side
    34,306.78x = 954,675,118.52
  5. Step 5: Solve for x
    x = 954,675,118.52/34,306.78
  6. Step 6: Final answer
    x = 27,827.59

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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.