Home / 31,620.16-47,430.22-9,449.09

Finding the Fourth Proportional to 31,620.16, 47,430.22 and 9,449.09

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Solution

The fourth proportional to 31,620.16, 47,430.22 and 9,449.09 is: 14,173.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,620.16 : 47,430.22 = 9,449.09 : x
  2. Step 2: Convert to fraction form
    31,620.16/47,430.22 = 9,449.09/x
  3. Step 3: Cross multiply
    31,620.16x = 47,430.22 × 9,449.09
  4. Step 4: Simplify right side
    31,620.16x = 448,172,417.50
  5. Step 5: Solve for x
    x = 448,172,417.50/31,620.16
  6. Step 6: Final answer
    x = 14,173.63

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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.