Home / 22,383.79-30,888.98-12,312.23

Finding the Fourth Proportional to 22,383.79, 30,888.98 and 12,312.23

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Solution

The fourth proportional to 22,383.79, 30,888.98 and 12,312.23 is: 16,990.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,383.79 : 30,888.98 = 12,312.23 : x
  2. Step 2: Convert to fraction form
    22,383.79/30,888.98 = 12,312.23/x
  3. Step 3: Cross multiply
    22,383.79x = 30,888.98 × 12,312.23
  4. Step 4: Simplify right side
    22,383.79x = 380,312,172.22
  5. Step 5: Solve for x
    x = 380,312,172.22/22,383.79
  6. Step 6: Final answer
    x = 16,990.52

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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.