Home / 31,409.07-47,118.47-19,553.72

Finding the Fourth Proportional to 31,409.07, 47,118.47 and 19,553.72

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Solution

The fourth proportional to 31,409.07, 47,118.47 and 19,553.72 is: 29,333.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,409.07 : 47,118.47 = 19,553.72 : x
  2. Step 2: Convert to fraction form
    31,409.07/47,118.47 = 19,553.72/x
  3. Step 3: Cross multiply
    31,409.07x = 47,118.47 × 19,553.72
  4. Step 4: Simplify right side
    31,409.07x = 921,341,035.85
  5. Step 5: Solve for x
    x = 921,341,035.85/31,409.07
  6. Step 6: Final answer
    x = 29,333.60

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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.