Home / 20,210.16-27,888.12-18,724.08

Finding the Fourth Proportional to 20,210.16, 27,888.12 and 18,724.08

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Solution

The fourth proportional to 20,210.16, 27,888.12 and 18,724.08 is: 25,837.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,210.16 : 27,888.12 = 18,724.08 : x
  2. Step 2: Convert to fraction form
    20,210.16/27,888.12 = 18,724.08/x
  3. Step 3: Cross multiply
    20,210.16x = 27,888.12 × 18,724.08
  4. Step 4: Simplify right side
    20,210.16x = 522,179,389.93
  5. Step 5: Solve for x
    x = 522,179,389.93/20,210.16
  6. Step 6: Final answer
    x = 25,837.47

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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.