Home / 27,428.51-37,851.14-15,494.18

Finding the Fourth Proportional to 27,428.51, 37,851.14 and 15,494.18

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Solution

The fourth proportional to 27,428.51, 37,851.14 and 15,494.18 is: 21,381.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,428.51 : 37,851.14 = 15,494.18 : x
  2. Step 2: Convert to fraction form
    27,428.51/37,851.14 = 15,494.18/x
  3. Step 3: Cross multiply
    27,428.51x = 37,851.14 × 15,494.18
  4. Step 4: Simplify right side
    27,428.51x = 586,472,109.64
  5. Step 5: Solve for x
    x = 586,472,109.64/27,428.51
  6. Step 6: Final answer
    x = 21,381.85

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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.