Home / 30,872.90-46,260.14-19,770.45

Finding the Fourth Proportional to 30,872.90, 46,260.14 and 19,770.45

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Solution

The fourth proportional to 30,872.90, 46,260.14 and 19,770.45 is: 29,624.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,872.90 : 46,260.14 = 19,770.45 : x
  2. Step 2: Convert to fraction form
    30,872.90/46,260.14 = 19,770.45/x
  3. Step 3: Cross multiply
    30,872.90x = 46,260.14 × 19,770.45
  4. Step 4: Simplify right side
    30,872.90x = 914,583,686.01
  5. Step 5: Solve for x
    x = 914,583,686.01/30,872.90
  6. Step 6: Final answer
    x = 29,624.16

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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.