Home / 34,287.00-47,322.12-20,139.84

Finding the Fourth Proportional to 34,287.00, 47,322.12 and 20,139.84

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Solution

The fourth proportional to 34,287.00, 47,322.12 and 20,139.84 is: 27,796.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,287.00 : 47,322.12 = 20,139.84 : x
  2. Step 2: Convert to fraction form
    34,287.00/47,322.12 = 20,139.84/x
  3. Step 3: Cross multiply
    34,287.00x = 47,322.12 × 20,139.84
  4. Step 4: Simplify right side
    34,287.00x = 953,060,000.79
  5. Step 5: Solve for x
    x = 953,060,000.79/34,287.00
  6. Step 6: Final answer
    x = 27,796.54

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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.