Home / 21,948.98-32,928.71-7,157.91

Finding the Fourth Proportional to 21,948.98, 32,928.71 and 7,157.91

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Solution

The fourth proportional to 21,948.98, 32,928.71 and 7,157.91 is: 10,738.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,948.98 : 32,928.71 = 7,157.91 : x
  2. Step 2: Convert to fraction form
    21,948.98/32,928.71 = 7,157.91/x
  3. Step 3: Cross multiply
    21,948.98x = 32,928.71 × 7,157.91
  4. Step 4: Simplify right side
    21,948.98x = 235,700,742.60
  5. Step 5: Solve for x
    x = 235,700,742.60/21,948.98
  6. Step 6: Final answer
    x = 10,738.57

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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.