Home / 30,125.40-45,184.65-7,940.52

Finding the Fourth Proportional to 30,125.40, 45,184.65 and 7,940.52

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Solution

The fourth proportional to 30,125.40, 45,184.65 and 7,940.52 is: 11,909.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,125.40 : 45,184.65 = 7,940.52 : x
  2. Step 2: Convert to fraction form
    30,125.40/45,184.65 = 7,940.52/x
  3. Step 3: Cross multiply
    30,125.40x = 45,184.65 × 7,940.52
  4. Step 4: Simplify right side
    30,125.40x = 358,789,617.02
  5. Step 5: Solve for x
    x = 358,789,617.02/30,125.40
  6. Step 6: Final answer
    x = 11,909.87

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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.