Home / 31,919.04-47,887.20-11,144.16

Finding the Fourth Proportional to 31,919.04, 47,887.20 and 11,144.16

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Solution

The fourth proportional to 31,919.04, 47,887.20 and 11,144.16 is: 16,719.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,919.04 : 47,887.20 = 11,144.16 : x
  2. Step 2: Convert to fraction form
    31,919.04/47,887.20 = 11,144.16/x
  3. Step 3: Cross multiply
    31,919.04x = 47,887.20 × 11,144.16
  4. Step 4: Simplify right side
    31,919.04x = 533,662,618.75
  5. Step 5: Solve for x
    x = 533,662,618.75/31,919.04
  6. Step 6: Final answer
    x = 16,719.26

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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.