Home / 30,624.84-42,289.20-19,314.54

Finding the Fourth Proportional to 30,624.84, 42,289.20 and 19,314.54

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Solution

The fourth proportional to 30,624.84, 42,289.20 and 19,314.54 is: 26,671.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,624.84 : 42,289.20 = 19,314.54 : x
  2. Step 2: Convert to fraction form
    30,624.84/42,289.20 = 19,314.54/x
  3. Step 3: Cross multiply
    30,624.84x = 42,289.20 × 19,314.54
  4. Step 4: Simplify right side
    30,624.84x = 816,796,444.97
  5. Step 5: Solve for x
    x = 816,796,444.97/30,624.84
  6. Step 6: Final answer
    x = 26,671.04

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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.