Home / 31,095.51-42,912.23-16,948.32

Finding the Fourth Proportional to 31,095.51, 42,912.23 and 16,948.32

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Solution

The fourth proportional to 31,095.51, 42,912.23 and 16,948.32 is: 23,388.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,095.51 : 42,912.23 = 16,948.32 : x
  2. Step 2: Convert to fraction form
    31,095.51/42,912.23 = 16,948.32/x
  3. Step 3: Cross multiply
    31,095.51x = 42,912.23 × 16,948.32
  4. Step 4: Simplify right side
    31,095.51x = 727,290,121.21
  5. Step 5: Solve for x
    x = 727,290,121.21/31,095.51
  6. Step 6: Final answer
    x = 23,388.91

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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.