Home / 21,619.40-32,417.87-10,209.42

Finding the Fourth Proportional to 21,619.40, 32,417.87 and 10,209.42

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Solution

The fourth proportional to 21,619.40, 32,417.87 and 10,209.42 is: 15,308.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,619.40 : 32,417.87 = 10,209.42 : x
  2. Step 2: Convert to fraction form
    21,619.40/32,417.87 = 10,209.42/x
  3. Step 3: Cross multiply
    21,619.40x = 32,417.87 × 10,209.42
  4. Step 4: Simplify right side
    21,619.40x = 330,967,599.29
  5. Step 5: Solve for x
    x = 330,967,599.29/21,619.40
  6. Step 6: Final answer
    x = 15,308.83

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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.