Home / 39,236.84-54,147.90-21,333.08

Finding the Fourth Proportional to 39,236.84, 54,147.90 and 21,333.08

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Solution

The fourth proportional to 39,236.84, 54,147.90 and 21,333.08 is: 29,440.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,236.84 : 54,147.90 = 21,333.08 : x
  2. Step 2: Convert to fraction form
    39,236.84/54,147.90 = 21,333.08/x
  3. Step 3: Cross multiply
    39,236.84x = 54,147.90 × 21,333.08
  4. Step 4: Simplify right side
    39,236.84x = 1,155,141,482.53
  5. Step 5: Solve for x
    x = 1,155,141,482.53/39,236.84
  6. Step 6: Final answer
    x = 29,440.23

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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.