Home / 30,789.24-42,493.56-22,319.40

Finding the Fourth Proportional to 30,789.24, 42,493.56 and 22,319.40

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Solution

The fourth proportional to 30,789.24, 42,493.56 and 22,319.40 is: 30,803.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,789.24 : 42,493.56 = 22,319.40 : x
  2. Step 2: Convert to fraction form
    30,789.24/42,493.56 = 22,319.40/x
  3. Step 3: Cross multiply
    30,789.24x = 42,493.56 × 22,319.40
  4. Step 4: Simplify right side
    30,789.24x = 948,430,763.06
  5. Step 5: Solve for x
    x = 948,430,763.06/30,789.24
  6. Step 6: Final answer
    x = 30,803.97

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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.