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Finding the Fourth Proportional to 30,041.44, 45,064.74 and 7,854.79

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Solution

The fourth proportional to 30,041.44, 45,064.74 and 7,854.79 is: 11,782.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,041.44 : 45,064.74 = 7,854.79 : x
  2. Step 2: Convert to fraction form
    30,041.44/45,064.74 = 7,854.79/x
  3. Step 3: Cross multiply
    30,041.44x = 45,064.74 × 7,854.79
  4. Step 4: Simplify right side
    30,041.44x = 353,973,844.38
  5. Step 5: Solve for x
    x = 353,973,844.38/30,041.44
  6. Step 6: Final answer
    x = 11,782.85

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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.