Home / 19,981.80-27,557.96-12,022.54

Finding the Fourth Proportional to 19,981.80, 27,557.96 and 12,022.54

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Solution

The fourth proportional to 19,981.80, 27,557.96 and 12,022.54 is: 16,580.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,981.80 : 27,557.96 = 12,022.54 : x
  2. Step 2: Convert to fraction form
    19,981.80/27,557.96 = 12,022.54/x
  3. Step 3: Cross multiply
    19,981.80x = 27,557.96 × 12,022.54
  4. Step 4: Simplify right side
    19,981.80x = 331,316,547.41
  5. Step 5: Solve for x
    x = 331,316,547.41/19,981.80
  6. Step 6: Final answer
    x = 16,580.92

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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.