Home / 31,518.90-47,298.06-12,799.02

Finding the Fourth Proportional to 31,518.90, 47,298.06 and 12,799.02

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Solution

The fourth proportional to 31,518.90, 47,298.06 and 12,799.02 is: 19,206.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,518.90 : 47,298.06 = 12,799.02 : x
  2. Step 2: Convert to fraction form
    31,518.90/47,298.06 = 12,799.02/x
  3. Step 3: Cross multiply
    31,518.90x = 47,298.06 × 12,799.02
  4. Step 4: Simplify right side
    31,518.90x = 605,368,815.90
  5. Step 5: Solve for x
    x = 605,368,815.90/31,518.90
  6. Step 6: Final answer
    x = 19,206.53

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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.