Home / 22,287.42-33,430.79-5,420.59

Finding the Fourth Proportional to 22,287.42, 33,430.79 and 5,420.59

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Solution

The fourth proportional to 22,287.42, 33,430.79 and 5,420.59 is: 8,130.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,287.42 : 33,430.79 = 5,420.59 : x
  2. Step 2: Convert to fraction form
    22,287.42/33,430.79 = 5,420.59/x
  3. Step 3: Cross multiply
    22,287.42x = 33,430.79 × 5,420.59
  4. Step 4: Simplify right side
    22,287.42x = 181,214,535.94
  5. Step 5: Solve for x
    x = 181,214,535.94/22,287.42
  6. Step 6: Final answer
    x = 8,130.80

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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.