Home / 27,905.08-38,511.72-15,970.12

Finding the Fourth Proportional to 27,905.08, 38,511.72 and 15,970.12

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Solution

The fourth proportional to 27,905.08, 38,511.72 and 15,970.12 is: 22,040.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,905.08 : 38,511.72 = 15,970.12 : x
  2. Step 2: Convert to fraction form
    27,905.08/38,511.72 = 15,970.12/x
  3. Step 3: Cross multiply
    27,905.08x = 38,511.72 × 15,970.12
  4. Step 4: Simplify right side
    27,905.08x = 615,036,789.81
  5. Step 5: Solve for x
    x = 615,036,789.81/27,905.08
  6. Step 6: Final answer
    x = 22,040.32

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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.