Home / 31,451.25-47,059.11-18,754.59

Finding the Fourth Proportional to 31,451.25, 47,059.11 and 18,754.59

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Solution

The fourth proportional to 31,451.25, 47,059.11 and 18,754.59 is: 28,061.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,451.25 : 47,059.11 = 18,754.59 : x
  2. Step 2: Convert to fraction form
    31,451.25/47,059.11 = 18,754.59/x
  3. Step 3: Cross multiply
    31,451.25x = 47,059.11 × 18,754.59
  4. Step 4: Simplify right side
    31,451.25x = 882,574,313.81
  5. Step 5: Solve for x
    x = 882,574,313.81/31,451.25
  6. Step 6: Final answer
    x = 28,061.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.