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Finding the Fourth Proportional to 30,362.52, 45,547.62 and 11,892.12

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Solution

The fourth proportional to 30,362.52, 45,547.62 and 11,892.12 is: 17,839.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,362.52 : 45,547.62 = 11,892.12 : x
  2. Step 2: Convert to fraction form
    30,362.52/45,547.62 = 11,892.12/x
  3. Step 3: Cross multiply
    30,362.52x = 45,547.62 × 11,892.12
  4. Step 4: Simplify right side
    30,362.52x = 541,657,762.75
  5. Step 5: Solve for x
    x = 541,657,762.75/30,362.52
  6. Step 6: Final answer
    x = 17,839.68

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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.