Home / 31,449.84-47,156.67-18,812.22

Finding the Fourth Proportional to 31,449.84, 47,156.67 and 18,812.22

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Solution

The fourth proportional to 31,449.84, 47,156.67 and 18,812.22 is: 28,207.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,449.84 : 47,156.67 = 18,812.22 : x
  2. Step 2: Convert to fraction form
    31,449.84/47,156.67 = 18,812.22/x
  3. Step 3: Cross multiply
    31,449.84x = 47,156.67 × 18,812.22
  4. Step 4: Simplify right side
    31,449.84x = 887,121,650.51
  5. Step 5: Solve for x
    x = 887,121,650.51/31,449.84
  6. Step 6: Final answer
    x = 28,207.51

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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.