Home / 27,431.51-37,855.28-15,497.18

Finding the Fourth Proportional to 27,431.51, 37,855.28 and 15,497.18

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Solution

The fourth proportional to 27,431.51, 37,855.28 and 15,497.18 is: 21,385.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,431.51 : 37,855.28 = 15,497.18 : x
  2. Step 2: Convert to fraction form
    27,431.51/37,855.28 = 15,497.18/x
  3. Step 3: Cross multiply
    27,431.51x = 37,855.28 × 15,497.18
  4. Step 4: Simplify right side
    27,431.51x = 586,649,821.35
  5. Step 5: Solve for x
    x = 586,649,821.35/27,431.51
  6. Step 6: Final answer
    x = 21,385.99

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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.