Home / 31,746.28-47,621.34-13,272.04

Finding the Fourth Proportional to 31,746.28, 47,621.34 and 13,272.04

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Solution

The fourth proportional to 31,746.28, 47,621.34 and 13,272.04 is: 19,908.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,746.28 : 47,621.34 = 13,272.04 : x
  2. Step 2: Convert to fraction form
    31,746.28/47,621.34 = 13,272.04/x
  3. Step 3: Cross multiply
    31,746.28x = 47,621.34 × 13,272.04
  4. Step 4: Simplify right side
    31,746.28x = 632,032,329.33
  5. Step 5: Solve for x
    x = 632,032,329.33/31,746.28
  6. Step 6: Final answer
    x = 19,908.86

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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.