Home / 21,298.28-31,952.28-6,509.30

Finding the Fourth Proportional to 21,298.28, 31,952.28 and 6,509.30

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Solution

The fourth proportional to 21,298.28, 31,952.28 and 6,509.30 is: 9,765.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,298.28 : 31,952.28 = 6,509.30 : x
  2. Step 2: Convert to fraction form
    21,298.28/31,952.28 = 6,509.30/x
  3. Step 3: Cross multiply
    21,298.28x = 31,952.28 × 6,509.30
  4. Step 4: Simplify right side
    21,298.28x = 207,986,976.20
  5. Step 5: Solve for x
    x = 207,986,976.20/21,298.28
  6. Step 6: Final answer
    x = 9,765.44

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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.