Home / 20,030.42-30,045.65-7,553.25

Finding the Fourth Proportional to 20,030.42, 30,045.65 and 7,553.25

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Solution

The fourth proportional to 20,030.42, 30,045.65 and 7,553.25 is: 11,329.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,030.42 : 30,045.65 = 7,553.25 : x
  2. Step 2: Convert to fraction form
    20,030.42/30,045.65 = 7,553.25/x
  3. Step 3: Cross multiply
    20,030.42x = 30,045.65 × 7,553.25
  4. Step 4: Simplify right side
    20,030.42x = 226,942,268.10
  5. Step 5: Solve for x
    x = 226,942,268.10/20,030.42
  6. Step 6: Final answer
    x = 11,329.88

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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.