Home / 31,980.22-47,970.45-9,793.51

Finding the Fourth Proportional to 31,980.22, 47,970.45 and 9,793.51

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Solution

The fourth proportional to 31,980.22, 47,970.45 and 9,793.51 is: 14,690.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,980.22 : 47,970.45 = 9,793.51 : x
  2. Step 2: Convert to fraction form
    31,980.22/47,970.45 = 9,793.51/x
  3. Step 3: Cross multiply
    31,980.22x = 47,970.45 × 9,793.51
  4. Step 4: Simplify right side
    31,980.22x = 469,799,081.78
  5. Step 5: Solve for x
    x = 469,799,081.78/31,980.22
  6. Step 6: Final answer
    x = 14,690.30

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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.