Home / 27,637.44-38,139.54-15,698.40

Finding the Fourth Proportional to 27,637.44, 38,139.54 and 15,698.40

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Solution

The fourth proportional to 27,637.44, 38,139.54 and 15,698.40 is: 21,663.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,637.44 : 38,139.54 = 15,698.40 : x
  2. Step 2: Convert to fraction form
    27,637.44/38,139.54 = 15,698.40/x
  3. Step 3: Cross multiply
    27,637.44x = 38,139.54 × 15,698.40
  4. Step 4: Simplify right side
    27,637.44x = 598,729,754.74
  5. Step 5: Solve for x
    x = 598,729,754.74/27,637.44
  6. Step 6: Final answer
    x = 21,663.72

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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.