Home / 27,905.96-38,510.08-15,159.04

Finding the Fourth Proportional to 27,905.96, 38,510.08 and 15,159.04

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Solution

The fourth proportional to 27,905.96, 38,510.08 and 15,159.04 is: 20,919.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,905.96 : 38,510.08 = 15,159.04 : x
  2. Step 2: Convert to fraction form
    27,905.96/38,510.08 = 15,159.04/x
  3. Step 3: Cross multiply
    27,905.96x = 38,510.08 × 15,159.04
  4. Step 4: Simplify right side
    27,905.96x = 583,775,843.12
  5. Step 5: Solve for x
    x = 583,775,843.12/27,905.96
  6. Step 6: Final answer
    x = 20,919.40

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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.