Home / 30,255.33-45,389.15-10,535.43

Finding the Fourth Proportional to 30,255.33, 45,389.15 and 10,535.43

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Solution

The fourth proportional to 30,255.33, 45,389.15 and 10,535.43 is: 15,805.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,255.33 : 45,389.15 = 10,535.43 : x
  2. Step 2: Convert to fraction form
    30,255.33/45,389.15 = 10,535.43/x
  3. Step 3: Cross multiply
    30,255.33x = 45,389.15 × 10,535.43
  4. Step 4: Simplify right side
    30,255.33x = 478,194,238.92
  5. Step 5: Solve for x
    x = 478,194,238.92/30,255.33
  6. Step 6: Final answer
    x = 15,805.29

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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.