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Finding the Fourth Proportional to 30,384.60, 45,576.90 and 17,043.90

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Solution

The fourth proportional to 30,384.60, 45,576.90 and 17,043.90 is: 25,565.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,384.60 : 45,576.90 = 17,043.90 : x
  2. Step 2: Convert to fraction form
    30,384.60/45,576.90 = 17,043.90/x
  3. Step 3: Cross multiply
    30,384.60x = 45,576.90 × 17,043.90
  4. Step 4: Simplify right side
    30,384.60x = 776,808,125.91
  5. Step 5: Solve for x
    x = 776,808,125.91/30,384.60
  6. Step 6: Final answer
    x = 25,565.85

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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.