Home / 31,657.92-47,457.40-11,949.52

Finding the Fourth Proportional to 31,657.92, 47,457.40 and 11,949.52

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Solution

The fourth proportional to 31,657.92, 47,457.40 and 11,949.52 is: 17,913.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,657.92 : 47,457.40 = 11,949.52 : x
  2. Step 2: Convert to fraction form
    31,657.92/47,457.40 = 11,949.52/x
  3. Step 3: Cross multiply
    31,657.92x = 47,457.40 × 11,949.52
  4. Step 4: Simplify right side
    31,657.92x = 567,093,150.45
  5. Step 5: Solve for x
    x = 567,093,150.45/31,657.92
  6. Step 6: Final answer
    x = 17,913.15

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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.