Home / 31,376.20-47,064.30-15,824.20

Finding the Fourth Proportional to 31,376.20, 47,064.30 and 15,824.20

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Solution

The fourth proportional to 31,376.20, 47,064.30 and 15,824.20 is: 23,736.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,376.20 : 47,064.30 = 15,824.20 : x
  2. Step 2: Convert to fraction form
    31,376.20/47,064.30 = 15,824.20/x
  3. Step 3: Cross multiply
    31,376.20x = 47,064.30 × 15,824.20
  4. Step 4: Simplify right side
    31,376.20x = 744,754,896.06
  5. Step 5: Solve for x
    x = 744,754,896.06/31,376.20
  6. Step 6: Final answer
    x = 23,736.30

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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.