Home / 30,330.92-45,510.80-13,696.04

Finding the Fourth Proportional to 30,330.92, 45,510.80 and 13,696.04

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Solution

The fourth proportional to 30,330.92, 45,510.80 and 13,696.04 is: 20,550.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,330.92 : 45,510.80 = 13,696.04 : x
  2. Step 2: Convert to fraction form
    30,330.92/45,510.80 = 13,696.04/x
  3. Step 3: Cross multiply
    30,330.92x = 45,510.80 × 13,696.04
  4. Step 4: Simplify right side
    30,330.92x = 623,317,441.20
  5. Step 5: Solve for x
    x = 623,317,441.20/30,330.92
  6. Step 6: Final answer
    x = 20,550.57

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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.