Home / 21,955.55-32,868.63-13,608.71

Finding the Fourth Proportional to 21,955.55, 32,868.63 and 13,608.71

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Solution

The fourth proportional to 21,955.55, 32,868.63 and 13,608.71 is: 20,372.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,955.55 : 32,868.63 = 13,608.71 : x
  2. Step 2: Convert to fraction form
    21,955.55/32,868.63 = 13,608.71/x
  3. Step 3: Cross multiply
    21,955.55x = 32,868.63 × 13,608.71
  4. Step 4: Simplify right side
    21,955.55x = 447,299,421.38
  5. Step 5: Solve for x
    x = 447,299,421.38/21,955.55
  6. Step 6: Final answer
    x = 20,372.95

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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.