Home / 27,688.89-38,210.66-15,113.64

Finding the Fourth Proportional to 27,688.89, 38,210.66 and 15,113.64

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Solution

The fourth proportional to 27,688.89, 38,210.66 and 15,113.64 is: 20,856.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,688.89 : 38,210.66 = 15,113.64 : x
  2. Step 2: Convert to fraction form
    27,688.89/38,210.66 = 15,113.64/x
  3. Step 3: Cross multiply
    27,688.89x = 38,210.66 × 15,113.64
  4. Step 4: Simplify right side
    27,688.89x = 577,502,197.19
  5. Step 5: Solve for x
    x = 577,502,197.19/27,688.89
  6. Step 6: Final answer
    x = 20,856.82

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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.