Home / 31,501.19-47,252.69-8,127.63

Finding the Fourth Proportional to 31,501.19, 47,252.69 and 8,127.63

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Solution

The fourth proportional to 31,501.19, 47,252.69 and 8,127.63 is: 12,191.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,501.19 : 47,252.69 = 8,127.63 : x
  2. Step 2: Convert to fraction form
    31,501.19/47,252.69 = 8,127.63/x
  3. Step 3: Cross multiply
    31,501.19x = 47,252.69 × 8,127.63
  4. Step 4: Simplify right side
    31,501.19x = 384,052,380.82
  5. Step 5: Solve for x
    x = 384,052,380.82/31,501.19
  6. Step 6: Final answer
    x = 12,191.68

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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.