Home / 21,587.58-32,373.18-8,438.31

Finding the Fourth Proportional to 21,587.58, 32,373.18 and 8,438.31

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Solution

The fourth proportional to 21,587.58, 32,373.18 and 8,438.31 is: 12,654.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,587.58 : 32,373.18 = 8,438.31 : x
  2. Step 2: Convert to fraction form
    21,587.58/32,373.18 = 8,438.31/x
  3. Step 3: Cross multiply
    21,587.58x = 32,373.18 × 8,438.31
  4. Step 4: Simplify right side
    21,587.58x = 273,174,928.53
  5. Step 5: Solve for x
    x = 273,174,928.53/21,587.58
  6. Step 6: Final answer
    x = 12,654.26

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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.