Home / 30,312.84-45,470.48-15,517.78

Finding the Fourth Proportional to 30,312.84, 45,470.48 and 15,517.78

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Solution

The fourth proportional to 30,312.84, 45,470.48 and 15,517.78 is: 23,277.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,312.84 : 45,470.48 = 15,517.78 : x
  2. Step 2: Convert to fraction form
    30,312.84/45,470.48 = 15,517.78/x
  3. Step 3: Cross multiply
    30,312.84x = 45,470.48 × 15,517.78
  4. Step 4: Simplify right side
    30,312.84x = 705,600,905.13
  5. Step 5: Solve for x
    x = 705,600,905.13/30,312.84
  6. Step 6: Final answer
    x = 23,277.29

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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.