Home / 30,489.23-45,732.46-12,712.56

Finding the Fourth Proportional to 30,489.23, 45,732.46 and 12,712.56

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Solution

The fourth proportional to 30,489.23, 45,732.46 and 12,712.56 is: 19,068.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,489.23 : 45,732.46 = 12,712.56 : x
  2. Step 2: Convert to fraction form
    30,489.23/45,732.46 = 12,712.56/x
  3. Step 3: Cross multiply
    30,489.23x = 45,732.46 × 12,712.56
  4. Step 4: Simplify right side
    30,489.23x = 581,376,641.70
  5. Step 5: Solve for x
    x = 581,376,641.70/30,489.23
  6. Step 6: Final answer
    x = 19,068.27

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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.