Home / 22,383.23-30,888.92-12,312.71

Finding the Fourth Proportional to 22,383.23, 30,888.92 and 12,312.71

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Solution

The fourth proportional to 22,383.23, 30,888.92 and 12,312.71 is: 16,991.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,383.23 : 30,888.92 = 12,312.71 : x
  2. Step 2: Convert to fraction form
    22,383.23/30,888.92 = 12,312.71/x
  3. Step 3: Cross multiply
    22,383.23x = 30,888.92 × 12,312.71
  4. Step 4: Simplify right side
    22,383.23x = 380,326,190.51
  5. Step 5: Solve for x
    x = 380,326,190.51/22,383.23
  6. Step 6: Final answer
    x = 16,991.57

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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.