Home / 31,482.30-47,212.10-10,418.45

Finding the Fourth Proportional to 31,482.30, 47,212.10 and 10,418.45

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Solution

The fourth proportional to 31,482.30, 47,212.10 and 10,418.45 is: 15,623.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,482.30 : 47,212.10 = 10,418.45 : x
  2. Step 2: Convert to fraction form
    31,482.30/47,212.10 = 10,418.45/x
  3. Step 3: Cross multiply
    31,482.30x = 47,212.10 × 10,418.45
  4. Step 4: Simplify right side
    31,482.30x = 491,876,903.25
  5. Step 5: Solve for x
    x = 491,876,903.25/31,482.30
  6. Step 6: Final answer
    x = 15,623.92

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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.