Home / 31,095.07-42,911.21-17,666.35

Finding the Fourth Proportional to 31,095.07, 42,911.21 and 17,666.35

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Solution

The fourth proportional to 31,095.07, 42,911.21 and 17,666.35 is: 24,379.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,095.07 : 42,911.21 = 17,666.35 : x
  2. Step 2: Convert to fraction form
    31,095.07/42,911.21 = 17,666.35/x
  3. Step 3: Cross multiply
    31,095.07x = 42,911.21 × 17,666.35
  4. Step 4: Simplify right side
    31,095.07x = 758,084,240.23
  5. Step 5: Solve for x
    x = 758,084,240.23/31,095.07
  6. Step 6: Final answer
    x = 24,379.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.