Home / 27,317.16-37,690.14-15,379.80

Finding the Fourth Proportional to 27,317.16, 37,690.14 and 15,379.80

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Solution

The fourth proportional to 27,317.16, 37,690.14 and 15,379.80 is: 21,219.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,317.16 : 37,690.14 = 15,379.80 : x
  2. Step 2: Convert to fraction form
    27,317.16/37,690.14 = 15,379.80/x
  3. Step 3: Cross multiply
    27,317.16x = 37,690.14 × 15,379.80
  4. Step 4: Simplify right side
    27,317.16x = 579,666,815.17
  5. Step 5: Solve for x
    x = 579,666,815.17/27,317.16
  6. Step 6: Final answer
    x = 21,219.88

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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.