Home / 29,267.89-40,389.69-15,839.15

Finding the Fourth Proportional to 29,267.89, 40,389.69 and 15,839.15

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Solution

The fourth proportional to 29,267.89, 40,389.69 and 15,839.15 is: 21,858.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,267.89 : 40,389.69 = 15,839.15 : x
  2. Step 2: Convert to fraction form
    29,267.89/40,389.69 = 15,839.15/x
  3. Step 3: Cross multiply
    29,267.89x = 40,389.69 × 15,839.15
  4. Step 4: Simplify right side
    29,267.89x = 639,738,358.36
  5. Step 5: Solve for x
    x = 639,738,358.36/29,267.89
  6. Step 6: Final answer
    x = 21,858.03

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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.