Home / 31,421.32-47,131.99-9,234.70

Finding the Fourth Proportional to 31,421.32, 47,131.99 and 9,234.70

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Solution

The fourth proportional to 31,421.32, 47,131.99 and 9,234.70 is: 13,852.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,421.32 : 47,131.99 = 9,234.70 : x
  2. Step 2: Convert to fraction form
    31,421.32/47,131.99 = 9,234.70/x
  3. Step 3: Cross multiply
    31,421.32x = 47,131.99 × 9,234.70
  4. Step 4: Simplify right side
    31,421.32x = 435,249,647.14
  5. Step 5: Solve for x
    x = 435,249,647.14/31,421.32
  6. Step 6: Final answer
    x = 13,852.05

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Similar ratio
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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.