Home / 30,880.10-46,320.15-10,105.70

Finding the Fourth Proportional to 30,880.10, 46,320.15 and 10,105.70

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Solution

The fourth proportional to 30,880.10, 46,320.15 and 10,105.70 is: 15,158.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,880.10 : 46,320.15 = 10,105.70 : x
  2. Step 2: Convert to fraction form
    30,880.10/46,320.15 = 10,105.70/x
  3. Step 3: Cross multiply
    30,880.10x = 46,320.15 × 10,105.70
  4. Step 4: Simplify right side
    30,880.10x = 468,097,539.86
  5. Step 5: Solve for x
    x = 468,097,539.86/30,880.10
  6. Step 6: Final answer
    x = 15,158.55

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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.