Home / 21,089.12-31,633.28-6,298.08

Finding the Fourth Proportional to 21,089.12, 31,633.28 and 6,298.08

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Solution

The fourth proportional to 21,089.12, 31,633.28 and 6,298.08 is: 9,447.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,089.12 : 31,633.28 = 6,298.08 : x
  2. Step 2: Convert to fraction form
    21,089.12/31,633.28 = 6,298.08/x
  3. Step 3: Cross multiply
    21,089.12x = 31,633.28 × 6,298.08
  4. Step 4: Simplify right side
    21,089.12x = 199,228,928.10
  5. Step 5: Solve for x
    x = 199,228,928.10/21,089.12
  6. Step 6: Final answer
    x = 9,447.00

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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.