Home / 31,826.89-47,741.28-15,188.68

Finding the Fourth Proportional to 31,826.89, 47,741.28 and 15,188.68

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Solution

The fourth proportional to 31,826.89, 47,741.28 and 15,188.68 is: 22,783.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,826.89 : 47,741.28 = 15,188.68 : x
  2. Step 2: Convert to fraction form
    31,826.89/47,741.28 = 15,188.68/x
  3. Step 3: Cross multiply
    31,826.89x = 47,741.28 × 15,188.68
  4. Step 4: Simplify right side
    31,826.89x = 725,127,024.71
  5. Step 5: Solve for x
    x = 725,127,024.71/31,826.89
  6. Step 6: Final answer
    x = 22,783.47

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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.