Home / 28,206.40-38,943.84-25,212.64

Finding the Fourth Proportional to 28,206.40, 38,943.84 and 25,212.64

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Solution

The fourth proportional to 28,206.40, 38,943.84 and 25,212.64 is: 34,810.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,206.40 : 38,943.84 = 25,212.64 : x
  2. Step 2: Convert to fraction form
    28,206.40/38,943.84 = 25,212.64/x
  3. Step 3: Cross multiply
    28,206.40x = 38,943.84 × 25,212.64
  4. Step 4: Simplify right side
    28,206.40x = 981,877,018.14
  5. Step 5: Solve for x
    x = 981,877,018.14/28,206.40
  6. Step 6: Final answer
    x = 34,810.43

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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.