Home / 31,556.12-47,368.31-28,068.47

Finding the Fourth Proportional to 31,556.12, 47,368.31 and 28,068.47

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Solution

The fourth proportional to 31,556.12, 47,368.31 and 28,068.47 is: 42,133.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,556.12 : 47,368.31 = 28,068.47 : x
  2. Step 2: Convert to fraction form
    31,556.12/47,368.31 = 28,068.47/x
  3. Step 3: Cross multiply
    31,556.12x = 47,368.31 × 28,068.47
  4. Step 4: Simplify right side
    31,556.12x = 1,329,555,611.00
  5. Step 5: Solve for x
    x = 1,329,555,611.00/31,556.12
  6. Step 6: Final answer
    x = 42,133.05

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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.