Home / 30,238.40-45,357.60-9,461.92

Finding the Fourth Proportional to 30,238.40, 45,357.60 and 9,461.92

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Solution

The fourth proportional to 30,238.40, 45,357.60 and 9,461.92 is: 14,192.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,238.40 : 45,357.60 = 9,461.92 : x
  2. Step 2: Convert to fraction form
    30,238.40/45,357.60 = 9,461.92/x
  3. Step 3: Cross multiply
    30,238.40x = 45,357.60 × 9,461.92
  4. Step 4: Simplify right side
    30,238.40x = 429,169,982.59
  5. Step 5: Solve for x
    x = 429,169,982.59/30,238.40
  6. Step 6: Final answer
    x = 14,192.88

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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.