Home / 30,358.16-45,537.40-18,008.72

Finding the Fourth Proportional to 30,358.16, 45,537.40 and 18,008.72

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Solution

The fourth proportional to 30,358.16, 45,537.40 and 18,008.72 is: 27,013.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,358.16 : 45,537.40 = 18,008.72 : x
  2. Step 2: Convert to fraction form
    30,358.16/45,537.40 = 18,008.72/x
  3. Step 3: Cross multiply
    30,358.16x = 45,537.40 × 18,008.72
  4. Step 4: Simplify right side
    30,358.16x = 820,070,286.13
  5. Step 5: Solve for x
    x = 820,070,286.13/30,358.16
  6. Step 6: Final answer
    x = 27,013.17

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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.