Home / 27,975.84-38,606.64-15,400.56

Finding the Fourth Proportional to 27,975.84, 38,606.64 and 15,400.56

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Solution

The fourth proportional to 27,975.84, 38,606.64 and 15,400.56 is: 21,252.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,975.84 : 38,606.64 = 15,400.56 : x
  2. Step 2: Convert to fraction form
    27,975.84/38,606.64 = 15,400.56/x
  3. Step 3: Cross multiply
    27,975.84x = 38,606.64 × 15,400.56
  4. Step 4: Simplify right side
    27,975.84x = 594,563,875.72
  5. Step 5: Solve for x
    x = 594,563,875.72/27,975.84
  6. Step 6: Final answer
    x = 21,252.76

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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.