Home / 45,021.57-67,535.78-13,429.16

Finding the Fourth Proportional to 45,021.57, 67,535.78 and 13,429.16

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Solution

The fourth proportional to 45,021.57, 67,535.78 and 13,429.16 is: 20,144.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,021.57 : 67,535.78 = 13,429.16 : x
  2. Step 2: Convert to fraction form
    45,021.57/67,535.78 = 13,429.16/x
  3. Step 3: Cross multiply
    45,021.57x = 67,535.78 × 13,429.16
  4. Step 4: Simplify right side
    45,021.57x = 906,948,643.78
  5. Step 5: Solve for x
    x = 906,948,643.78/45,021.57
  6. Step 6: Final answer
    x = 20,144.76

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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.