Home / 28,767.84-43,156.68-13,186.80

Finding the Fourth Proportional to 28,767.84, 43,156.68 and 13,186.80

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Solution

The fourth proportional to 28,767.84, 43,156.68 and 13,186.80 is: 19,782.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,767.84 : 43,156.68 = 13,186.80 : x
  2. Step 2: Convert to fraction form
    28,767.84/43,156.68 = 13,186.80/x
  3. Step 3: Cross multiply
    28,767.84x = 43,156.68 × 13,186.80
  4. Step 4: Simplify right side
    28,767.84x = 569,098,507.82
  5. Step 5: Solve for x
    x = 569,098,507.82/28,767.84
  6. Step 6: Final answer
    x = 19,782.46

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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.