Home / 30,336.20-45,496.20-10,612.70

Finding the Fourth Proportional to 30,336.20, 45,496.20 and 10,612.70

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Solution

The fourth proportional to 30,336.20, 45,496.20 and 10,612.70 is: 15,916.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,336.20 : 45,496.20 = 10,612.70 : x
  2. Step 2: Convert to fraction form
    30,336.20/45,496.20 = 10,612.70/x
  3. Step 3: Cross multiply
    30,336.20x = 45,496.20 × 10,612.70
  4. Step 4: Simplify right side
    30,336.20x = 482,837,521.74
  5. Step 5: Solve for x
    x = 482,837,521.74/30,336.20
  6. Step 6: Final answer
    x = 15,916.22

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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.