Home / 27,886.16-38,482.94-15,139.35

Finding the Fourth Proportional to 27,886.16, 38,482.94 and 15,139.35

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Solution

The fourth proportional to 27,886.16, 38,482.94 and 15,139.35 is: 20,892.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,886.16 : 38,482.94 = 15,139.35 : x
  2. Step 2: Convert to fraction form
    27,886.16/38,482.94 = 15,139.35/x
  3. Step 3: Cross multiply
    27,886.16x = 38,482.94 × 15,139.35
  4. Step 4: Simplify right side
    27,886.16x = 582,606,621.99
  5. Step 5: Solve for x
    x = 582,606,621.99/27,886.16
  6. Step 6: Final answer
    x = 20,892.32

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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.