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Finding the Fourth Proportional to 29,430.80, 44,148.90 and 9,709.40

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Solution

The fourth proportional to 29,430.80, 44,148.90 and 9,709.40 is: 14,564.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,430.80 : 44,148.90 = 9,709.40 : x
  2. Step 2: Convert to fraction form
    29,430.80/44,148.90 = 9,709.40/x
  3. Step 3: Cross multiply
    29,430.80x = 44,148.90 × 9,709.40
  4. Step 4: Simplify right side
    29,430.80x = 428,659,329.66
  5. Step 5: Solve for x
    x = 428,659,329.66/29,430.80
  6. Step 6: Final answer
    x = 14,564.99

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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.