Home / 30,886.63-42,576.37-18,927.79

Finding the Fourth Proportional to 30,886.63, 42,576.37 and 18,927.79

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Solution

The fourth proportional to 30,886.63, 42,576.37 and 18,927.79 is: 26,091.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,886.63 : 42,576.37 = 18,927.79 : x
  2. Step 2: Convert to fraction form
    30,886.63/42,576.37 = 18,927.79/x
  3. Step 3: Cross multiply
    30,886.63x = 42,576.37 × 18,927.79
  4. Step 4: Simplify right side
    30,886.63x = 805,876,590.32
  5. Step 5: Solve for x
    x = 805,876,590.32/30,886.63
  6. Step 6: Final answer
    x = 26,091.44

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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.