Home / 21,267.96-31,901.80-5,685.52

Finding the Fourth Proportional to 21,267.96, 31,901.80 and 5,685.52

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Solution

The fourth proportional to 21,267.96, 31,901.80 and 5,685.52 is: 8,528.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,267.96 : 31,901.80 = 5,685.52 : x
  2. Step 2: Convert to fraction form
    21,267.96/31,901.80 = 5,685.52/x
  3. Step 3: Cross multiply
    21,267.96x = 31,901.80 × 5,685.52
  4. Step 4: Simplify right side
    21,267.96x = 181,378,321.94
  5. Step 5: Solve for x
    x = 181,378,321.94/21,267.96
  6. Step 6: Final answer
    x = 8,528.24

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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.