Home / 30,208.52-45,330.34-12,440.97

Finding the Fourth Proportional to 30,208.52, 45,330.34 and 12,440.97

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Solution

The fourth proportional to 30,208.52, 45,330.34 and 12,440.97 is: 18,668.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,208.52 : 45,330.34 = 12,440.97 : x
  2. Step 2: Convert to fraction form
    30,208.52/45,330.34 = 12,440.97/x
  3. Step 3: Cross multiply
    30,208.52x = 45,330.34 × 12,440.97
  4. Step 4: Simplify right side
    30,208.52x = 563,953,368.93
  5. Step 5: Solve for x
    x = 563,953,368.93/30,208.52
  6. Step 6: Final answer
    x = 18,668.68

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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.