Home / 39,348.41-54,300.80-21,443.40

Finding the Fourth Proportional to 39,348.41, 54,300.80 and 21,443.40

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Solution

The fourth proportional to 39,348.41, 54,300.80 and 21,443.40 is: 29,591.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,348.41 : 54,300.80 = 21,443.40 : x
  2. Step 2: Convert to fraction form
    39,348.41/54,300.80 = 21,443.40/x
  3. Step 3: Cross multiply
    39,348.41x = 54,300.80 × 21,443.40
  4. Step 4: Simplify right side
    39,348.41x = 1,164,393,828.33
  5. Step 5: Solve for x
    x = 1,164,393,828.33/39,348.41
  6. Step 6: Final answer
    x = 29,591.89

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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.