Home / 27,907.32-38,467.76-21,928.70

Finding the Fourth Proportional to 27,907.32, 38,467.76 and 21,928.70

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Solution

The fourth proportional to 27,907.32, 38,467.76 and 21,928.70 is: 30,226.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,907.32 : 38,467.76 = 21,928.70 : x
  2. Step 2: Convert to fraction form
    27,907.32/38,467.76 = 21,928.70/x
  3. Step 3: Cross multiply
    27,907.32x = 38,467.76 × 21,928.70
  4. Step 4: Simplify right side
    27,907.32x = 843,547,968.71
  5. Step 5: Solve for x
    x = 843,547,968.71/27,907.32
  6. Step 6: Final answer
    x = 30,226.76

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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.