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Finding the Fourth Proportional to 30,605.53, 45,809.88 and 15,794.28

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Solution

The fourth proportional to 30,605.53, 45,809.88 and 15,794.28 is: 23,640.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,605.53 : 45,809.88 = 15,794.28 : x
  2. Step 2: Convert to fraction form
    30,605.53/45,809.88 = 15,794.28/x
  3. Step 3: Cross multiply
    30,605.53x = 45,809.88 × 15,794.28
  4. Step 4: Simplify right side
    30,605.53x = 723,533,763.47
  5. Step 5: Solve for x
    x = 723,533,763.47/30,605.53
  6. Step 6: Final answer
    x = 23,640.62

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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.