Home / 31,718.73-47,578.87-10,659.08

Finding the Fourth Proportional to 31,718.73, 47,578.87 and 10,659.08

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Solution

The fourth proportional to 31,718.73, 47,578.87 and 10,659.08 is: 15,988.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,718.73 : 47,578.87 = 10,659.08 : x
  2. Step 2: Convert to fraction form
    31,718.73/47,578.87 = 10,659.08/x
  3. Step 3: Cross multiply
    31,718.73x = 47,578.87 × 10,659.08
  4. Step 4: Simplify right side
    31,718.73x = 507,146,981.64
  5. Step 5: Solve for x
    x = 507,146,981.64/31,718.73
  6. Step 6: Final answer
    x = 15,988.88

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.