Home / 39,002.72-53,823.68-21,097.74

Finding the Fourth Proportional to 39,002.72, 53,823.68 and 21,097.74

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Solution

The fourth proportional to 39,002.72, 53,823.68 and 21,097.74 is: 29,114.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,002.72 : 53,823.68 = 21,097.74 : x
  2. Step 2: Convert to fraction form
    39,002.72/53,823.68 = 21,097.74/x
  3. Step 3: Cross multiply
    39,002.72x = 53,823.68 × 21,097.74
  4. Step 4: Simplify right side
    39,002.72x = 1,135,558,006.48
  5. Step 5: Solve for x
    x = 1,135,558,006.48/39,002.72
  6. Step 6: Final answer
    x = 29,114.84

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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.