Home / 30,116.62-45,178.01-10,395.12

Finding the Fourth Proportional to 30,116.62, 45,178.01 and 10,395.12

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Solution

The fourth proportional to 30,116.62, 45,178.01 and 10,395.12 is: 15,593.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,116.62 : 45,178.01 = 10,395.12 : x
  2. Step 2: Convert to fraction form
    30,116.62/45,178.01 = 10,395.12/x
  3. Step 3: Cross multiply
    30,116.62x = 45,178.01 × 10,395.12
  4. Step 4: Simplify right side
    30,116.62x = 469,630,835.31
  5. Step 5: Solve for x
    x = 469,630,835.31/30,116.62
  6. Step 6: Final answer
    x = 15,593.74

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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.