Home / 31,890.17-47,837.93-9,703.72

Finding the Fourth Proportional to 31,890.17, 47,837.93 and 9,703.72

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Solution

The fourth proportional to 31,890.17, 47,837.93 and 9,703.72 is: 14,556.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,890.17 : 47,837.93 = 9,703.72 : x
  2. Step 2: Convert to fraction form
    31,890.17/47,837.93 = 9,703.72/x
  3. Step 3: Cross multiply
    31,890.17x = 47,837.93 × 9,703.72
  4. Step 4: Simplify right side
    31,890.17x = 464,205,878.10
  5. Step 5: Solve for x
    x = 464,205,878.10/31,890.17
  6. Step 6: Final answer
    x = 14,556.39

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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.