Home / 31,470.27-47,212.31-13,703.76

Finding the Fourth Proportional to 31,470.27, 47,212.31 and 13,703.76

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Solution

The fourth proportional to 31,470.27, 47,212.31 and 13,703.76 is: 20,558.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,470.27 : 47,212.31 = 13,703.76 : x
  2. Step 2: Convert to fraction form
    31,470.27/47,212.31 = 13,703.76/x
  3. Step 3: Cross multiply
    31,470.27x = 47,212.31 × 13,703.76
  4. Step 4: Simplify right side
    31,470.27x = 646,986,165.29
  5. Step 5: Solve for x
    x = 646,986,165.29/31,470.27
  6. Step 6: Final answer
    x = 20,558.65

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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.