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Finding the Fourth Proportional to 30,437.66, 45,660.81 and 9,379.41

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Solution

The fourth proportional to 30,437.66, 45,660.81 and 9,379.41 is: 14,070.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,437.66 : 45,660.81 = 9,379.41 : x
  2. Step 2: Convert to fraction form
    30,437.66/45,660.81 = 9,379.41/x
  3. Step 3: Cross multiply
    30,437.66x = 45,660.81 × 9,379.41
  4. Step 4: Simplify right side
    30,437.66x = 428,271,457.92
  5. Step 5: Solve for x
    x = 428,271,457.92/30,437.66
  6. Step 6: Final answer
    x = 14,070.45

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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.