Home / 31,591.28-47,385.48-11,868.32

Finding the Fourth Proportional to 31,591.28, 47,385.48 and 11,868.32

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Solution

The fourth proportional to 31,591.28, 47,385.48 and 11,868.32 is: 17,801.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,591.28 : 47,385.48 = 11,868.32 : x
  2. Step 2: Convert to fraction form
    31,591.28/47,385.48 = 11,868.32/x
  3. Step 3: Cross multiply
    31,591.28x = 47,385.48 × 11,868.32
  4. Step 4: Simplify right side
    31,591.28x = 562,386,039.99
  5. Step 5: Solve for x
    x = 562,386,039.99/31,591.28
  6. Step 6: Final answer
    x = 17,801.94

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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.