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Finding the Fourth Proportional to 30,368.52, 45,556.62 and 11,898.12

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Solution

The fourth proportional to 30,368.52, 45,556.62 and 11,898.12 is: 17,848.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,368.52 : 45,556.62 = 11,898.12 : x
  2. Step 2: Convert to fraction form
    30,368.52/45,556.62 = 11,898.12/x
  3. Step 3: Cross multiply
    30,368.52x = 45,556.62 × 11,898.12
  4. Step 4: Simplify right side
    30,368.52x = 542,038,131.55
  5. Step 5: Solve for x
    x = 542,038,131.55/30,368.52
  6. Step 6: Final answer
    x = 17,848.68

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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.