Home / 27,141.90-40,703.25-12,908.70

Finding the Fourth Proportional to 27,141.90, 40,703.25 and 12,908.70

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Solution

The fourth proportional to 27,141.90, 40,703.25 and 12,908.70 is: 19,358.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,141.90 : 40,703.25 = 12,908.70 : x
  2. Step 2: Convert to fraction form
    27,141.90/40,703.25 = 12,908.70/x
  3. Step 3: Cross multiply
    27,141.90x = 40,703.25 × 12,908.70
  4. Step 4: Simplify right side
    27,141.90x = 525,426,043.28
  5. Step 5: Solve for x
    x = 525,426,043.28/27,141.90
  6. Step 6: Final answer
    x = 19,358.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.