Home / 28,187.07-38,856.56-22,206.84

Finding the Fourth Proportional to 28,187.07, 38,856.56 and 22,206.84

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Solution

The fourth proportional to 28,187.07, 38,856.56 and 22,206.84 is: 30,612.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,187.07 : 38,856.56 = 22,206.84 : x
  2. Step 2: Convert to fraction form
    28,187.07/38,856.56 = 22,206.84/x
  3. Step 3: Cross multiply
    28,187.07x = 38,856.56 × 22,206.84
  4. Step 4: Simplify right side
    28,187.07x = 862,881,299.84
  5. Step 5: Solve for x
    x = 862,881,299.84/28,187.07
  6. Step 6: Final answer
    x = 30,612.66

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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.