Home / 30,873.98-42,595.53-19,540.46

Finding the Fourth Proportional to 30,873.98, 42,595.53 and 19,540.46

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Solution

The fourth proportional to 30,873.98, 42,595.53 and 19,540.46 is: 26,959.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,873.98 : 42,595.53 = 19,540.46 : x
  2. Step 2: Convert to fraction form
    30,873.98/42,595.53 = 19,540.46/x
  3. Step 3: Cross multiply
    30,873.98x = 42,595.53 × 19,540.46
  4. Step 4: Simplify right side
    30,873.98x = 832,336,250.14
  5. Step 5: Solve for x
    x = 832,336,250.14/30,873.98
  6. Step 6: Final answer
    x = 26,959.15

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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.