Home / 19,867.68-27,423.12-12,316.32

Finding the Fourth Proportional to 19,867.68, 27,423.12 and 12,316.32

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Solution

The fourth proportional to 19,867.68, 27,423.12 and 12,316.32 is: 17,000.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,867.68 : 27,423.12 = 12,316.32 : x
  2. Step 2: Convert to fraction form
    19,867.68/27,423.12 = 12,316.32/x
  3. Step 3: Cross multiply
    19,867.68x = 27,423.12 × 12,316.32
  4. Step 4: Simplify right side
    19,867.68x = 337,751,921.32
  5. Step 5: Solve for x
    x = 337,751,921.32/19,867.68
  6. Step 6: Final answer
    x = 17,000.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.