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Finding the Fourth Proportional to 30,347.25, 45,548.95 and 15,364.90

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Solution

The fourth proportional to 30,347.25, 45,548.95 and 15,364.90 is: 23,061.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,347.25 : 45,548.95 = 15,364.90 : x
  2. Step 2: Convert to fraction form
    30,347.25/45,548.95 = 15,364.90/x
  3. Step 3: Cross multiply
    30,347.25x = 45,548.95 × 15,364.90
  4. Step 4: Simplify right side
    30,347.25x = 699,854,981.08
  5. Step 5: Solve for x
    x = 699,854,981.08/30,347.25
  6. Step 6: Final answer
    x = 23,061.56

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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.