Home / 22,228.96-30,670.23-13,272.52

Finding the Fourth Proportional to 22,228.96, 30,670.23 and 13,272.52

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Solution

The fourth proportional to 22,228.96, 30,670.23 and 13,272.52 is: 18,312.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,228.96 : 30,670.23 = 13,272.52 : x
  2. Step 2: Convert to fraction form
    22,228.96/30,670.23 = 13,272.52/x
  3. Step 3: Cross multiply
    22,228.96x = 30,670.23 × 13,272.52
  4. Step 4: Simplify right side
    22,228.96x = 407,071,241.08
  5. Step 5: Solve for x
    x = 407,071,241.08/22,228.96
  6. Step 6: Final answer
    x = 18,312.65

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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.