Home / 31,707.04-43,758.16-17,561.20

Finding the Fourth Proportional to 31,707.04, 43,758.16 and 17,561.20

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Solution

The fourth proportional to 31,707.04, 43,758.16 and 17,561.20 is: 24,235.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,707.04 : 43,758.16 = 17,561.20 : x
  2. Step 2: Convert to fraction form
    31,707.04/43,758.16 = 17,561.20/x
  3. Step 3: Cross multiply
    31,707.04x = 43,758.16 × 17,561.20
  4. Step 4: Simplify right side
    31,707.04x = 768,445,799.39
  5. Step 5: Solve for x
    x = 768,445,799.39/31,707.04
  6. Step 6: Final answer
    x = 24,235.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.