Home / 26,929.85-40,394.19-7,208.40

Finding the Fourth Proportional to 26,929.85, 40,394.19 and 7,208.40

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Solution

The fourth proportional to 26,929.85, 40,394.19 and 7,208.40 is: 10,812.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,929.85 : 40,394.19 = 7,208.40 : x
  2. Step 2: Convert to fraction form
    26,929.85/40,394.19 = 7,208.40/x
  3. Step 3: Cross multiply
    26,929.85x = 40,394.19 × 7,208.40
  4. Step 4: Simplify right side
    26,929.85x = 291,177,479.20
  5. Step 5: Solve for x
    x = 291,177,479.20/26,929.85
  6. Step 6: Final answer
    x = 10,812.45

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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.