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Finding the Fourth Proportional to 30,602.72, 45,917.12 and 17,285.70

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Solution

The fourth proportional to 30,602.72, 45,917.12 and 17,285.70 is: 25,935.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,602.72 : 45,917.12 = 17,285.70 : x
  2. Step 2: Convert to fraction form
    30,602.72/45,917.12 = 17,285.70/x
  3. Step 3: Cross multiply
    30,602.72x = 45,917.12 × 17,285.70
  4. Step 4: Simplify right side
    30,602.72x = 793,709,561.18
  5. Step 5: Solve for x
    x = 793,709,561.18/30,602.72
  6. Step 6: Final answer
    x = 25,935.92

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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.