Home / 27,688.31-38,209.85-15,113.06

Finding the Fourth Proportional to 27,688.31, 38,209.85 and 15,113.06

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Solution

The fourth proportional to 27,688.31, 38,209.85 and 15,113.06 is: 20,856.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,688.31 : 38,209.85 = 15,113.06 : x
  2. Step 2: Convert to fraction form
    27,688.31/38,209.85 = 15,113.06/x
  3. Step 3: Cross multiply
    27,688.31x = 38,209.85 × 15,113.06
  4. Step 4: Simplify right side
    27,688.31x = 577,467,755.64
  5. Step 5: Solve for x
    x = 577,467,755.64/27,688.31
  6. Step 6: Final answer
    x = 20,856.01

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.