Home / 34,152.17-47,134.31-20,722.64

Finding the Fourth Proportional to 34,152.17, 47,134.31 and 20,722.64

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Solution

The fourth proportional to 34,152.17, 47,134.31 and 20,722.64 is: 28,599.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,152.17 : 47,134.31 = 20,722.64 : x
  2. Step 2: Convert to fraction form
    34,152.17/47,134.31 = 20,722.64/x
  3. Step 3: Cross multiply
    34,152.17x = 47,134.31 × 20,722.64
  4. Step 4: Simplify right side
    34,152.17x = 976,746,998.49
  5. Step 5: Solve for x
    x = 976,746,998.49/34,152.17
  6. Step 6: Final answer
    x = 28,599.86

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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.