Home / 21,530.58-32,308.40-9,049.65

Finding the Fourth Proportional to 21,530.58, 32,308.40 and 9,049.65

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Solution

The fourth proportional to 21,530.58, 32,308.40 and 9,049.65 is: 13,579.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,530.58 : 32,308.40 = 9,049.65 : x
  2. Step 2: Convert to fraction form
    21,530.58/32,308.40 = 9,049.65/x
  3. Step 3: Cross multiply
    21,530.58x = 32,308.40 × 9,049.65
  4. Step 4: Simplify right side
    21,530.58x = 292,379,666.81
  5. Step 5: Solve for x
    x = 292,379,666.81/21,530.58
  6. Step 6: Final answer
    x = 13,579.74

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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.