Home / 31,420.16-47,138.18-9,234.24

Finding the Fourth Proportional to 31,420.16, 47,138.18 and 9,234.24

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Solution

The fourth proportional to 31,420.16, 47,138.18 and 9,234.24 is: 13,853.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,420.16 : 47,138.18 = 9,234.24 : x
  2. Step 2: Convert to fraction form
    31,420.16/47,138.18 = 9,234.24/x
  3. Step 3: Cross multiply
    31,420.16x = 47,138.18 × 9,234.24
  4. Step 4: Simplify right side
    31,420.16x = 435,285,267.28
  5. Step 5: Solve for x
    x = 435,285,267.28/31,420.16
  6. Step 6: Final answer
    x = 13,853.69

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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.