Home / 36,420.68-54,642.36-13,047.32

Finding the Fourth Proportional to 36,420.68, 54,642.36 and 13,047.32

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Solution

The fourth proportional to 36,420.68, 54,642.36 and 13,047.32 is: 19,575.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,420.68 : 54,642.36 = 13,047.32 : x
  2. Step 2: Convert to fraction form
    36,420.68/54,642.36 = 13,047.32/x
  3. Step 3: Cross multiply
    36,420.68x = 54,642.36 × 13,047.32
  4. Step 4: Simplify right side
    36,420.68x = 712,936,356.48
  5. Step 5: Solve for x
    x = 712,936,356.48/36,420.68
  6. Step 6: Final answer
    x = 19,575.04

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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.