Home / 31,501.76-47,250.84-8,129.36

Finding the Fourth Proportional to 31,501.76, 47,250.84 and 8,129.36

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Solution

The fourth proportional to 31,501.76, 47,250.84 and 8,129.36 is: 12,193.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,501.76 : 47,250.84 = 8,129.36 : x
  2. Step 2: Convert to fraction form
    31,501.76/47,250.84 = 8,129.36/x
  3. Step 3: Cross multiply
    31,501.76x = 47,250.84 × 8,129.36
  4. Step 4: Simplify right side
    31,501.76x = 384,119,088.66
  5. Step 5: Solve for x
    x = 384,119,088.66/31,501.76
  6. Step 6: Final answer
    x = 12,193.58

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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.