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Finding the Fourth Proportional to 30,201.35, 45,292.80 and 14,398.05

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Solution

The fourth proportional to 30,201.35, 45,292.80 and 14,398.05 is: 21,592.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,201.35 : 45,292.80 = 14,398.05 : x
  2. Step 2: Convert to fraction form
    30,201.35/45,292.80 = 14,398.05/x
  3. Step 3: Cross multiply
    30,201.35x = 45,292.80 × 14,398.05
  4. Step 4: Simplify right side
    30,201.35x = 652,127,999.04
  5. Step 5: Solve for x
    x = 652,127,999.04/30,201.35
  6. Step 6: Final answer
    x = 21,592.68

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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.