Home / 19,842.64-27,382.40-10,890.08

Finding the Fourth Proportional to 19,842.64, 27,382.40 and 10,890.08

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Solution

The fourth proportional to 19,842.64, 27,382.40 and 10,890.08 is: 15,028.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,842.64 : 27,382.40 = 10,890.08 : x
  2. Step 2: Convert to fraction form
    19,842.64/27,382.40 = 10,890.08/x
  3. Step 3: Cross multiply
    19,842.64x = 27,382.40 × 10,890.08
  4. Step 4: Simplify right side
    19,842.64x = 298,196,526.59
  5. Step 5: Solve for x
    x = 298,196,526.59/19,842.64
  6. Step 6: Final answer
    x = 15,028.07

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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.