Home / 21,421.06-32,123.66-7,377.21

Finding the Fourth Proportional to 21,421.06, 32,123.66 and 7,377.21

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Solution

The fourth proportional to 21,421.06, 32,123.66 and 7,377.21 is: 11,063.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,421.06 : 32,123.66 = 7,377.21 : x
  2. Step 2: Convert to fraction form
    21,421.06/32,123.66 = 7,377.21/x
  3. Step 3: Cross multiply
    21,421.06x = 32,123.66 × 7,377.21
  4. Step 4: Simplify right side
    21,421.06x = 236,982,948.90
  5. Step 5: Solve for x
    x = 236,982,948.90/21,421.06
  6. Step 6: Final answer
    x = 11,063.08

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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.