Home / 39,256.76-54,171.54-21,351.40

Finding the Fourth Proportional to 39,256.76, 54,171.54 and 21,351.40

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Solution

The fourth proportional to 39,256.76, 54,171.54 and 21,351.40 is: 29,463.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,256.76 : 54,171.54 = 21,351.40 : x
  2. Step 2: Convert to fraction form
    39,256.76/54,171.54 = 21,351.40/x
  3. Step 3: Cross multiply
    39,256.76x = 54,171.54 × 21,351.40
  4. Step 4: Simplify right side
    39,256.76x = 1,156,638,219.16
  5. Step 5: Solve for x
    x = 1,156,638,219.16/39,256.76
  6. Step 6: Final answer
    x = 29,463.42

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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.