Home / 34,057.45-47,000.69-20,621.17

Finding the Fourth Proportional to 34,057.45, 47,000.69 and 20,621.17

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Solution

The fourth proportional to 34,057.45, 47,000.69 and 20,621.17 is: 28,458.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,057.45 : 47,000.69 = 20,621.17 : x
  2. Step 2: Convert to fraction form
    34,057.45/47,000.69 = 20,621.17/x
  3. Step 3: Cross multiply
    34,057.45x = 47,000.69 × 20,621.17
  4. Step 4: Simplify right side
    34,057.45x = 969,209,218.61
  5. Step 5: Solve for x
    x = 969,209,218.61/34,057.45
  6. Step 6: Final answer
    x = 28,458.07

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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.