Home / 21,916.93-30,244.90-12,356.83

Finding the Fourth Proportional to 21,916.93, 30,244.90 and 12,356.83

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Solution

The fourth proportional to 21,916.93, 30,244.90 and 12,356.83 is: 17,052.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,916.93 : 30,244.90 = 12,356.83 : x
  2. Step 2: Convert to fraction form
    21,916.93/30,244.90 = 12,356.83/x
  3. Step 3: Cross multiply
    21,916.93x = 30,244.90 × 12,356.83
  4. Step 4: Simplify right side
    21,916.93x = 373,731,087.67
  5. Step 5: Solve for x
    x = 373,731,087.67/21,916.93
  6. Step 6: Final answer
    x = 17,052.16

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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.