Home / 22,308.65-30,788.51-13,356.15

Finding the Fourth Proportional to 22,308.65, 30,788.51 and 13,356.15

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Solution

The fourth proportional to 22,308.65, 30,788.51 and 13,356.15 is: 18,433.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,308.65 : 30,788.51 = 13,356.15 : x
  2. Step 2: Convert to fraction form
    22,308.65/30,788.51 = 13,356.15/x
  3. Step 3: Cross multiply
    22,308.65x = 30,788.51 × 13,356.15
  4. Step 4: Simplify right side
    22,308.65x = 411,215,957.84
  5. Step 5: Solve for x
    x = 411,215,957.84/22,308.65
  6. Step 6: Final answer
    x = 18,433.03

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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.