Home / 21,388.11-32,071.33-10,140.05

Finding the Fourth Proportional to 21,388.11, 32,071.33 and 10,140.05

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Solution

The fourth proportional to 21,388.11, 32,071.33 and 10,140.05 is: 15,204.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,388.11 : 32,071.33 = 10,140.05 : x
  2. Step 2: Convert to fraction form
    21,388.11/32,071.33 = 10,140.05/x
  3. Step 3: Cross multiply
    21,388.11x = 32,071.33 × 10,140.05
  4. Step 4: Simplify right side
    21,388.11x = 325,204,889.77
  5. Step 5: Solve for x
    x = 325,204,889.77/21,388.11
  6. Step 6: Final answer
    x = 15,204.94

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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.