Home / 27,165.12-37,485.96-15,065.40

Finding the Fourth Proportional to 27,165.12, 37,485.96 and 15,065.40

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Solution

The fourth proportional to 27,165.12, 37,485.96 and 15,065.40 is: 20,789.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,165.12 : 37,485.96 = 15,065.40 : x
  2. Step 2: Convert to fraction form
    27,165.12/37,485.96 = 15,065.40/x
  3. Step 3: Cross multiply
    27,165.12x = 37,485.96 × 15,065.40
  4. Step 4: Simplify right side
    27,165.12x = 564,740,981.78
  5. Step 5: Solve for x
    x = 564,740,981.78/27,165.12
  6. Step 6: Final answer
    x = 20,789.20

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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.