Home / 31,827.89-47,742.78-15,189.68

Finding the Fourth Proportional to 31,827.89, 47,742.78 and 15,189.68

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Solution

The fourth proportional to 31,827.89, 47,742.78 and 15,189.68 is: 22,784.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,827.89 : 47,742.78 = 15,189.68 : x
  2. Step 2: Convert to fraction form
    31,827.89/47,742.78 = 15,189.68/x
  3. Step 3: Cross multiply
    31,827.89x = 47,742.78 × 15,189.68
  4. Step 4: Simplify right side
    31,827.89x = 725,197,550.51
  5. Step 5: Solve for x
    x = 725,197,550.51/31,827.89
  6. Step 6: Final answer
    x = 22,784.97

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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.