Home / 21,437.19-32,149.58-8,286.57

Finding the Fourth Proportional to 21,437.19, 32,149.58 and 8,286.57

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Solution

The fourth proportional to 21,437.19, 32,149.58 and 8,286.57 is: 12,427.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,437.19 : 32,149.58 = 8,286.57 : x
  2. Step 2: Convert to fraction form
    21,437.19/32,149.58 = 8,286.57/x
  3. Step 3: Cross multiply
    21,437.19x = 32,149.58 × 8,286.57
  4. Step 4: Simplify right side
    21,437.19x = 266,409,703.71
  5. Step 5: Solve for x
    x = 266,409,703.71/21,437.19
  6. Step 6: Final answer
    x = 12,427.45

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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.