Home / 39,342.04-54,292.07-21,436.58

Finding the Fourth Proportional to 39,342.04, 54,292.07 and 21,436.58

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Solution

The fourth proportional to 39,342.04, 54,292.07 and 21,436.58 is: 29,582.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,342.04 : 54,292.07 = 21,436.58 : x
  2. Step 2: Convert to fraction form
    39,342.04/54,292.07 = 21,436.58/x
  3. Step 3: Cross multiply
    39,342.04x = 54,292.07 × 21,436.58
  4. Step 4: Simplify right side
    39,342.04x = 1,163,836,491.24
  5. Step 5: Solve for x
    x = 1,163,836,491.24/39,342.04
  6. Step 6: Final answer
    x = 29,582.52

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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.