Home / 31,482.55-47,212.48-10,418.70

Finding the Fourth Proportional to 31,482.55, 47,212.48 and 10,418.70

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Solution

The fourth proportional to 31,482.55, 47,212.48 and 10,418.70 is: 15,624.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,482.55 : 47,212.48 = 10,418.70 : x
  2. Step 2: Convert to fraction form
    31,482.55/47,212.48 = 10,418.70/x
  3. Step 3: Cross multiply
    31,482.55x = 47,212.48 × 10,418.70
  4. Step 4: Simplify right side
    31,482.55x = 491,892,639.33
  5. Step 5: Solve for x
    x = 491,892,639.33/31,482.55
  6. Step 6: Final answer
    x = 15,624.30

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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.