Home / 27,740.32-38,281.64-15,165.07

Finding the Fourth Proportional to 27,740.32, 38,281.64 and 15,165.07

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Solution

The fourth proportional to 27,740.32, 38,281.64 and 15,165.07 is: 20,927.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,740.32 : 38,281.64 = 15,165.07 : x
  2. Step 2: Convert to fraction form
    27,740.32/38,281.64 = 15,165.07/x
  3. Step 3: Cross multiply
    27,740.32x = 38,281.64 × 15,165.07
  4. Step 4: Simplify right side
    27,740.32x = 580,543,483.08
  5. Step 5: Solve for x
    x = 580,543,483.08/27,740.32
  6. Step 6: Final answer
    x = 20,927.79

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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.