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Finding the Fourth Proportional to 30,070.18, 45,103.98 and 7,883.08

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Solution

The fourth proportional to 30,070.18, 45,103.98 and 7,883.08 is: 11,824.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,070.18 : 45,103.98 = 7,883.08 : x
  2. Step 2: Convert to fraction form
    30,070.18/45,103.98 = 7,883.08/x
  3. Step 3: Cross multiply
    30,070.18x = 45,103.98 × 7,883.08
  4. Step 4: Simplify right side
    30,070.18x = 355,558,282.66
  5. Step 5: Solve for x
    x = 355,558,282.66/30,070.18
  6. Step 6: Final answer
    x = 11,824.28

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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.