Home / 39,334.60-54,282.42-21,430.60

Finding the Fourth Proportional to 39,334.60, 54,282.42 and 21,430.60

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Solution

The fourth proportional to 39,334.60, 54,282.42 and 21,430.60 is: 29,574.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,334.60 : 54,282.42 = 21,430.60 : x
  2. Step 2: Convert to fraction form
    39,334.60/54,282.42 = 21,430.60/x
  3. Step 3: Cross multiply
    39,334.60x = 54,282.42 × 21,430.60
  4. Step 4: Simplify right side
    39,334.60x = 1,163,304,830.05
  5. Step 5: Solve for x
    x = 1,163,304,830.05/39,334.60
  6. Step 6: Final answer
    x = 29,574.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.