Home / 30,319.52-45,440.06-20,944.58

Finding the Fourth Proportional to 30,319.52, 45,440.06 and 20,944.58

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Solution

The fourth proportional to 30,319.52, 45,440.06 and 20,944.58 is: 31,389.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,319.52 : 45,440.06 = 20,944.58 : x
  2. Step 2: Convert to fraction form
    30,319.52/45,440.06 = 20,944.58/x
  3. Step 3: Cross multiply
    30,319.52x = 45,440.06 × 20,944.58
  4. Step 4: Simplify right side
    30,319.52x = 951,722,639.95
  5. Step 5: Solve for x
    x = 951,722,639.95/30,319.52
  6. Step 6: Final answer
    x = 31,389.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.