Home / 21,995.58-32,988.32-13,113.42

Finding the Fourth Proportional to 21,995.58, 32,988.32 and 13,113.42

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Solution

The fourth proportional to 21,995.58, 32,988.32 and 13,113.42 is: 19,667.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,995.58 : 32,988.32 = 13,113.42 : x
  2. Step 2: Convert to fraction form
    21,995.58/32,988.32 = 13,113.42/x
  3. Step 3: Cross multiply
    21,995.58x = 32,988.32 × 13,113.42
  4. Step 4: Simplify right side
    21,995.58x = 432,589,695.25
  5. Step 5: Solve for x
    x = 432,589,695.25/21,995.58
  6. Step 6: Final answer
    x = 19,667.12

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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.