Home / 27,905.98-38,510.94-15,159.16

Finding the Fourth Proportional to 27,905.98, 38,510.94 and 15,159.16

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Solution

The fourth proportional to 27,905.98, 38,510.94 and 15,159.16 is: 20,920.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,905.98 : 38,510.94 = 15,159.16 : x
  2. Step 2: Convert to fraction form
    27,905.98/38,510.94 = 15,159.16/x
  3. Step 3: Cross multiply
    27,905.98x = 38,510.94 × 15,159.16
  4. Step 4: Simplify right side
    27,905.98x = 583,793,606.20
  5. Step 5: Solve for x
    x = 583,793,606.20/27,905.98
  6. Step 6: Final answer
    x = 20,920.02

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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.