Home / 39,192.49-54,085.73-21,287.11

Finding the Fourth Proportional to 39,192.49, 54,085.73 and 21,287.11

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Solution

The fourth proportional to 39,192.49, 54,085.73 and 21,287.11 is: 29,376.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,192.49 : 54,085.73 = 21,287.11 : x
  2. Step 2: Convert to fraction form
    39,192.49/54,085.73 = 21,287.11/x
  3. Step 3: Cross multiply
    39,192.49x = 54,085.73 × 21,287.11
  4. Step 4: Simplify right side
    39,192.49x = 1,151,329,075.43
  5. Step 5: Solve for x
    x = 1,151,329,075.43/39,192.49
  6. Step 6: Final answer
    x = 29,376.27

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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.