Home / 39,206.79-54,068.48-30,240.09

Finding the Fourth Proportional to 39,206.79, 54,068.48 and 30,240.09

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Solution

The fourth proportional to 39,206.79, 54,068.48 and 30,240.09 is: 41,702.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,206.79 : 54,068.48 = 30,240.09 : x
  2. Step 2: Convert to fraction form
    39,206.79/54,068.48 = 30,240.09/x
  3. Step 3: Cross multiply
    39,206.79x = 54,068.48 × 30,240.09
  4. Step 4: Simplify right side
    39,206.79x = 1,635,035,550.16
  5. Step 5: Solve for x
    x = 1,635,035,550.16/39,206.79
  6. Step 6: Final answer
    x = 41,702.87

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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.