Home / 30,439.80-45,666.90-9,663.30

Finding the Fourth Proportional to 30,439.80, 45,666.90 and 9,663.30

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Solution

The fourth proportional to 30,439.80, 45,666.90 and 9,663.30 is: 14,497.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,439.80 : 45,666.90 = 9,663.30 : x
  2. Step 2: Convert to fraction form
    30,439.80/45,666.90 = 9,663.30/x
  3. Step 3: Cross multiply
    30,439.80x = 45,666.90 × 9,663.30
  4. Step 4: Simplify right side
    30,439.80x = 441,292,954.77
  5. Step 5: Solve for x
    x = 441,292,954.77/30,439.80
  6. Step 6: Final answer
    x = 14,497.24

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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.