Home / 17,720.12-24,444.78-13,521.08

Finding the Fourth Proportional to 17,720.12, 24,444.78 and 13,521.08

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Solution

The fourth proportional to 17,720.12, 24,444.78 and 13,521.08 is: 18,652.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,720.12 : 24,444.78 = 13,521.08 : x
  2. Step 2: Convert to fraction form
    17,720.12/24,444.78 = 13,521.08/x
  3. Step 3: Cross multiply
    17,720.12x = 24,444.78 × 13,521.08
  4. Step 4: Simplify right side
    17,720.12x = 330,519,825.96
  5. Step 5: Solve for x
    x = 330,519,825.96/17,720.12
  6. Step 6: Final answer
    x = 18,652.23

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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.