Home / 20,896.65-31,270.08-18,095.13

Finding the Fourth Proportional to 20,896.65, 31,270.08 and 18,095.13

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Solution

The fourth proportional to 20,896.65, 31,270.08 and 18,095.13 is: 27,077.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,896.65 : 31,270.08 = 18,095.13 : x
  2. Step 2: Convert to fraction form
    20,896.65/31,270.08 = 18,095.13/x
  3. Step 3: Cross multiply
    20,896.65x = 31,270.08 × 18,095.13
  4. Step 4: Simplify right side
    20,896.65x = 565,836,162.71
  5. Step 5: Solve for x
    x = 565,836,162.71/20,896.65
  6. Step 6: Final answer
    x = 27,077.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.