Home / 31,442.22-47,153.30-10,378.35

Finding the Fourth Proportional to 31,442.22, 47,153.30 and 10,378.35

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Solution

The fourth proportional to 31,442.22, 47,153.30 and 10,378.35 is: 15,564.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,442.22 : 47,153.30 = 10,378.35 : x
  2. Step 2: Convert to fraction form
    31,442.22/47,153.30 = 10,378.35/x
  3. Step 3: Cross multiply
    31,442.22x = 47,153.30 × 10,378.35
  4. Step 4: Simplify right side
    31,442.22x = 489,373,399.16
  5. Step 5: Solve for x
    x = 489,373,399.16/31,442.22
  6. Step 6: Final answer
    x = 15,564.21

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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.