Home / 31,587.92-47,328.34-19,081.68

Finding the Fourth Proportional to 31,587.92, 47,328.34 and 19,081.68

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Solution

The fourth proportional to 31,587.92, 47,328.34 and 19,081.68 is: 28,590.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,587.92 : 47,328.34 = 19,081.68 : x
  2. Step 2: Convert to fraction form
    31,587.92/47,328.34 = 19,081.68/x
  3. Step 3: Cross multiply
    31,587.92x = 47,328.34 × 19,081.68
  4. Step 4: Simplify right side
    31,587.92x = 903,104,238.81
  5. Step 5: Solve for x
    x = 903,104,238.81/31,587.92
  6. Step 6: Final answer
    x = 28,590.18

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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.