Home / 30,055.80-45,082.62-9,279.30

Finding the Fourth Proportional to 30,055.80, 45,082.62 and 9,279.30

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Solution

The fourth proportional to 30,055.80, 45,082.62 and 9,279.30 is: 13,918.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,055.80 : 45,082.62 = 9,279.30 : x
  2. Step 2: Convert to fraction form
    30,055.80/45,082.62 = 9,279.30/x
  3. Step 3: Cross multiply
    30,055.80x = 45,082.62 × 9,279.30
  4. Step 4: Simplify right side
    30,055.80x = 418,335,155.77
  5. Step 5: Solve for x
    x = 418,335,155.77/30,055.80
  6. Step 6: Final answer
    x = 13,918.62

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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.