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Finding the Fourth Proportional to 30,490.92, 45,703.02 and 15,700.73

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Solution

The fourth proportional to 30,490.92, 45,703.02 and 15,700.73 is: 23,533.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,490.92 : 45,703.02 = 15,700.73 : x
  2. Step 2: Convert to fraction form
    30,490.92/45,703.02 = 15,700.73/x
  3. Step 3: Cross multiply
    30,490.92x = 45,703.02 × 15,700.73
  4. Step 4: Simplify right side
    30,490.92x = 717,570,548.69
  5. Step 5: Solve for x
    x = 717,570,548.69/30,490.92
  6. Step 6: Final answer
    x = 23,533.91

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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.