Home / 19,718.27-27,210.84-11,220.20

Finding the Fourth Proportional to 19,718.27, 27,210.84 and 11,220.20

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Solution

The fourth proportional to 19,718.27, 27,210.84 and 11,220.20 is: 15,483.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,718.27 : 27,210.84 = 11,220.20 : x
  2. Step 2: Convert to fraction form
    19,718.27/27,210.84 = 11,220.20/x
  3. Step 3: Cross multiply
    19,718.27x = 27,210.84 × 11,220.20
  4. Step 4: Simplify right side
    19,718.27x = 305,310,874.81
  5. Step 5: Solve for x
    x = 305,310,874.81/19,718.27
  6. Step 6: Final answer
    x = 15,483.66

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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.