Home / 27,620.00-38,115.87-15,683.59

Finding the Fourth Proportional to 27,620.00, 38,115.87 and 15,683.59

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Solution

The fourth proportional to 27,620.00, 38,115.87 and 15,683.59 is: 21,643.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,620.00 : 38,115.87 = 15,683.59 : x
  2. Step 2: Convert to fraction form
    27,620.00/38,115.87 = 15,683.59/x
  3. Step 3: Cross multiply
    27,620.00x = 38,115.87 × 15,683.59
  4. Step 4: Simplify right side
    27,620.00x = 597,793,666.40
  5. Step 5: Solve for x
    x = 597,793,666.40/27,620.00
  6. Step 6: Final answer
    x = 21,643.50

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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.