Home / 21,995.96-32,988.87-13,113.80

Finding the Fourth Proportional to 21,995.96, 32,988.87 and 13,113.80

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Solution

The fourth proportional to 21,995.96, 32,988.87 and 13,113.80 is: 19,667.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,995.96 : 32,988.87 = 13,113.80 : x
  2. Step 2: Convert to fraction form
    21,995.96/32,988.87 = 13,113.80/x
  3. Step 3: Cross multiply
    21,995.96x = 32,988.87 × 13,113.80
  4. Step 4: Simplify right side
    21,995.96x = 432,609,278.46
  5. Step 5: Solve for x
    x = 432,609,278.46/21,995.96
  6. Step 6: Final answer
    x = 19,667.67

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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.