Home / 21,282.52-31,923.76-5,699.72

Finding the Fourth Proportional to 21,282.52, 31,923.76 and 5,699.72

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Solution

The fourth proportional to 21,282.52, 31,923.76 and 5,699.72 is: 8,549.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,282.52 : 31,923.76 = 5,699.72 : x
  2. Step 2: Convert to fraction form
    21,282.52/31,923.76 = 5,699.72/x
  3. Step 3: Cross multiply
    21,282.52x = 31,923.76 × 5,699.72
  4. Step 4: Simplify right side
    21,282.52x = 181,956,493.35
  5. Step 5: Solve for x
    x = 181,956,493.35/21,282.52
  6. Step 6: Final answer
    x = 8,549.57

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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.