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Finding the Fourth Proportional to 30,404.40, 41,946.15 and 17,655.40

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Solution

The fourth proportional to 30,404.40, 41,946.15 and 17,655.40 is: 24,357.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,404.40 : 41,946.15 = 17,655.40 : x
  2. Step 2: Convert to fraction form
    30,404.40/41,946.15 = 17,655.40/x
  3. Step 3: Cross multiply
    30,404.40x = 41,946.15 × 17,655.40
  4. Step 4: Simplify right side
    30,404.40x = 740,576,056.71
  5. Step 5: Solve for x
    x = 740,576,056.71/30,404.40
  6. Step 6: Final answer
    x = 24,357.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.