Home / 27,792.72-38,353.50-15,856.02

Finding the Fourth Proportional to 27,792.72, 38,353.50 and 15,856.02

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Solution

The fourth proportional to 27,792.72, 38,353.50 and 15,856.02 is: 21,881.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,792.72 : 38,353.50 = 15,856.02 : x
  2. Step 2: Convert to fraction form
    27,792.72/38,353.50 = 15,856.02/x
  3. Step 3: Cross multiply
    27,792.72x = 38,353.50 × 15,856.02
  4. Step 4: Simplify right side
    27,792.72x = 608,133,863.07
  5. Step 5: Solve for x
    x = 608,133,863.07/27,792.72
  6. Step 6: Final answer
    x = 21,881.05

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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.