Home / 31,380.61-47,070.91-9,193.99

Finding the Fourth Proportional to 31,380.61, 47,070.91 and 9,193.99

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Solution

The fourth proportional to 31,380.61, 47,070.91 and 9,193.99 is: 13,790.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,380.61 : 47,070.91 = 9,193.99 : x
  2. Step 2: Convert to fraction form
    31,380.61/47,070.91 = 9,193.99/x
  3. Step 3: Cross multiply
    31,380.61x = 47,070.91 × 9,193.99
  4. Step 4: Simplify right side
    31,380.61x = 432,769,240.48
  5. Step 5: Solve for x
    x = 432,769,240.48/31,380.61
  6. Step 6: Final answer
    x = 13,790.98

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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.