Home / 30,981.20-46,471.48-10,206.16

Finding the Fourth Proportional to 30,981.20, 46,471.48 and 10,206.16

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Solution

The fourth proportional to 30,981.20, 46,471.48 and 10,206.16 is: 15,309.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,981.20 : 46,471.48 = 10,206.16 : x
  2. Step 2: Convert to fraction form
    30,981.20/46,471.48 = 10,206.16/x
  3. Step 3: Cross multiply
    30,981.20x = 46,471.48 × 10,206.16
  4. Step 4: Simplify right side
    30,981.20x = 474,295,360.32
  5. Step 5: Solve for x
    x = 474,295,360.32/30,981.20
  6. Step 6: Final answer
    x = 15,309.13

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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.