Home / 26,880.90-40,320.16-7,159.48

Finding the Fourth Proportional to 26,880.90, 40,320.16 and 7,159.48

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Solution

The fourth proportional to 26,880.90, 40,320.16 and 7,159.48 is: 10,738.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,880.90 : 40,320.16 = 7,159.48 : x
  2. Step 2: Convert to fraction form
    26,880.90/40,320.16 = 7,159.48/x
  3. Step 3: Cross multiply
    26,880.90x = 40,320.16 × 7,159.48
  4. Step 4: Simplify right side
    26,880.90x = 288,671,379.12
  5. Step 5: Solve for x
    x = 288,671,379.12/26,880.90
  6. Step 6: Final answer
    x = 10,738.90

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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.