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Finding the Fourth Proportional to 30,220.98, 45,339.98 and 10,501.53

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Solution

The fourth proportional to 30,220.98, 45,339.98 and 10,501.53 is: 15,755.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,220.98 : 45,339.98 = 10,501.53 : x
  2. Step 2: Convert to fraction form
    30,220.98/45,339.98 = 10,501.53/x
  3. Step 3: Cross multiply
    30,220.98x = 45,339.98 × 10,501.53
  4. Step 4: Simplify right side
    30,220.98x = 476,139,107.66
  5. Step 5: Solve for x
    x = 476,139,107.66/30,220.98
  6. Step 6: Final answer
    x = 15,755.25

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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.