Home / 31,095.48-42,911.64-16,948.28

Finding the Fourth Proportional to 31,095.48, 42,911.64 and 16,948.28

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Solution

The fourth proportional to 31,095.48, 42,911.64 and 16,948.28 is: 23,388.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,095.48 : 42,911.64 = 16,948.28 : x
  2. Step 2: Convert to fraction form
    31,095.48/42,911.64 = 16,948.28/x
  3. Step 3: Cross multiply
    31,095.48x = 42,911.64 × 16,948.28
  4. Step 4: Simplify right side
    31,095.48x = 727,278,489.98
  5. Step 5: Solve for x
    x = 727,278,489.98/31,095.48
  6. Step 6: Final answer
    x = 23,388.56

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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.