Home / 21,530.25-32,276.85-7,488.45

Finding the Fourth Proportional to 21,530.25, 32,276.85 and 7,488.45

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Solution

The fourth proportional to 21,530.25, 32,276.85 and 7,488.45 is: 11,226.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,530.25 : 32,276.85 = 7,488.45 : x
  2. Step 2: Convert to fraction form
    21,530.25/32,276.85 = 7,488.45/x
  3. Step 3: Cross multiply
    21,530.25x = 32,276.85 × 7,488.45
  4. Step 4: Simplify right side
    21,530.25x = 241,703,577.38
  5. Step 5: Solve for x
    x = 241,703,577.38/21,530.25
  6. Step 6: Final answer
    x = 11,226.23

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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.