Home / 27,515.84-37,971.65-15,579.08

Finding the Fourth Proportional to 27,515.84, 37,971.65 and 15,579.08

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Solution

The fourth proportional to 27,515.84, 37,971.65 and 15,579.08 is: 21,499.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,515.84 : 37,971.65 = 15,579.08 : x
  2. Step 2: Convert to fraction form
    27,515.84/37,971.65 = 15,579.08/x
  3. Step 3: Cross multiply
    27,515.84x = 37,971.65 × 15,579.08
  4. Step 4: Simplify right side
    27,515.84x = 591,563,105.33
  5. Step 5: Solve for x
    x = 591,563,105.33/27,515.84
  6. Step 6: Final answer
    x = 21,499.01

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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.