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Finding the Fourth Proportional to 30,483.40, 45,727.12 and 11,763.66

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Solution

The fourth proportional to 30,483.40, 45,727.12 and 11,763.66 is: 17,646.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,483.40 : 45,727.12 = 11,763.66 : x
  2. Step 2: Convert to fraction form
    30,483.40/45,727.12 = 11,763.66/x
  3. Step 3: Cross multiply
    30,483.40x = 45,727.12 × 11,763.66
  4. Step 4: Simplify right side
    30,483.40x = 537,918,292.46
  5. Step 5: Solve for x
    x = 537,918,292.46/30,483.40
  6. Step 6: Final answer
    x = 17,646.27

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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.