Home / 39,143.04-54,392.10-38,736.62

Finding the Fourth Proportional to 39,143.04, 54,392.10 and 38,736.62

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Solution

The fourth proportional to 39,143.04, 54,392.10 and 38,736.62 is: 53,827.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,143.04 : 54,392.10 = 38,736.62 : x
  2. Step 2: Convert to fraction form
    39,143.04/54,392.10 = 38,736.62/x
  3. Step 3: Cross multiply
    39,143.04x = 54,392.10 × 38,736.62
  4. Step 4: Simplify right side
    39,143.04x = 2,106,966,108.70
  5. Step 5: Solve for x
    x = 2,106,966,108.70/39,143.04
  6. Step 6: Final answer
    x = 53,827.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.