Home / 30,373.80-45,560.70-19,329.45

Finding the Fourth Proportional to 30,373.80, 45,560.70 and 19,329.45

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Solution

The fourth proportional to 30,373.80, 45,560.70 and 19,329.45 is: 28,994.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,373.80 : 45,560.70 = 19,329.45 : x
  2. Step 2: Convert to fraction form
    30,373.80/45,560.70 = 19,329.45/x
  3. Step 3: Cross multiply
    30,373.80x = 45,560.70 × 19,329.45
  4. Step 4: Simplify right side
    30,373.80x = 880,663,272.62
  5. Step 5: Solve for x
    x = 880,663,272.62/30,373.80
  6. Step 6: Final answer
    x = 28,994.18

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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.