Home / 27,984.71-38,618.79-15,409.46

Finding the Fourth Proportional to 27,984.71, 38,618.79 and 15,409.46

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Solution

The fourth proportional to 27,984.71, 38,618.79 and 15,409.46 is: 21,264.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,984.71 : 38,618.79 = 15,409.46 : x
  2. Step 2: Convert to fraction form
    27,984.71/38,618.79 = 15,409.46/x
  3. Step 3: Cross multiply
    27,984.71x = 38,618.79 × 15,409.46
  4. Step 4: Simplify right side
    27,984.71x = 595,094,699.75
  5. Step 5: Solve for x
    x = 595,094,699.75/27,984.71
  6. Step 6: Final answer
    x = 21,264.99

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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.