Home / 39,351.02-54,302.82-21,445.63

Finding the Fourth Proportional to 39,351.02, 54,302.82 and 21,445.63

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Solution

The fourth proportional to 39,351.02, 54,302.82 and 21,445.63 is: 29,594.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,351.02 : 54,302.82 = 21,445.63 : x
  2. Step 2: Convert to fraction form
    39,351.02/54,302.82 = 21,445.63/x
  3. Step 3: Cross multiply
    39,351.02x = 54,302.82 × 21,445.63
  4. Step 4: Simplify right side
    39,351.02x = 1,164,558,078.45
  5. Step 5: Solve for x
    x = 1,164,558,078.45/39,351.02
  6. Step 6: Final answer
    x = 29,594.11

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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.