Home / 30,186.30-45,279.45-10,464.87

Finding the Fourth Proportional to 30,186.30, 45,279.45 and 10,464.87

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Solution

The fourth proportional to 30,186.30, 45,279.45 and 10,464.87 is: 15,697.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,186.30 : 45,279.45 = 10,464.87 : x
  2. Step 2: Convert to fraction form
    30,186.30/45,279.45 = 10,464.87/x
  3. Step 3: Cross multiply
    30,186.30x = 45,279.45 × 10,464.87
  4. Step 4: Simplify right side
    30,186.30x = 473,843,557.92
  5. Step 5: Solve for x
    x = 473,843,557.92/30,186.30
  6. Step 6: Final answer
    x = 15,697.31

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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.