Home / 27,888.54-38,486.25-15,314.10

Finding the Fourth Proportional to 27,888.54, 38,486.25 and 15,314.10

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Solution

The fourth proportional to 27,888.54, 38,486.25 and 15,314.10 is: 21,133.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,888.54 : 38,486.25 = 15,314.10 : x
  2. Step 2: Convert to fraction form
    27,888.54/38,486.25 = 15,314.10/x
  3. Step 3: Cross multiply
    27,888.54x = 38,486.25 × 15,314.10
  4. Step 4: Simplify right side
    27,888.54x = 589,382,281.13
  5. Step 5: Solve for x
    x = 589,382,281.13/27,888.54
  6. Step 6: Final answer
    x = 21,133.49

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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.