Home / 27,318.69-37,695.87-15,219.09

Finding the Fourth Proportional to 27,318.69, 37,695.87 and 15,219.09

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Solution

The fourth proportional to 27,318.69, 37,695.87 and 15,219.09 is: 21,000.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,318.69 : 37,695.87 = 15,219.09 : x
  2. Step 2: Convert to fraction form
    27,318.69/37,695.87 = 15,219.09/x
  3. Step 3: Cross multiply
    27,318.69x = 37,695.87 × 15,219.09
  4. Step 4: Simplify right side
    27,318.69x = 573,696,838.16
  5. Step 5: Solve for x
    x = 573,696,838.16/27,318.69
  6. Step 6: Final answer
    x = 21,000.16

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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.