Home / 27,389.81-37,798.09-15,290.84

Finding the Fourth Proportional to 27,389.81, 37,798.09 and 15,290.84

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Solution

The fourth proportional to 27,389.81, 37,798.09 and 15,290.84 is: 21,101.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,389.81 : 37,798.09 = 15,290.84 : x
  2. Step 2: Convert to fraction form
    27,389.81/37,798.09 = 15,290.84/x
  3. Step 3: Cross multiply
    27,389.81x = 37,798.09 × 15,290.84
  4. Step 4: Simplify right side
    27,389.81x = 577,964,546.50
  5. Step 5: Solve for x
    x = 577,964,546.50/27,389.81
  6. Step 6: Final answer
    x = 21,101.44

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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.