Home / 29,267.79-40,389.66-15,839.05

Finding the Fourth Proportional to 29,267.79, 40,389.66 and 15,839.05

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Solution

The fourth proportional to 29,267.79, 40,389.66 and 15,839.05 is: 21,857.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,267.79 : 40,389.66 = 15,839.05 : x
  2. Step 2: Convert to fraction form
    29,267.79/40,389.66 = 15,839.05/x
  3. Step 3: Cross multiply
    29,267.79x = 40,389.66 × 15,839.05
  4. Step 4: Simplify right side
    29,267.79x = 639,733,667.52
  5. Step 5: Solve for x
    x = 639,733,667.52/29,267.79
  6. Step 6: Final answer
    x = 21,857.94

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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.