Home / 30,663.35-42,303.43-17,231.52

Finding the Fourth Proportional to 30,663.35, 42,303.43 and 17,231.52

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Solution

The fourth proportional to 30,663.35, 42,303.43 and 17,231.52 is: 23,772.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,663.35 : 42,303.43 = 17,231.52 : x
  2. Step 2: Convert to fraction form
    30,663.35/42,303.43 = 17,231.52/x
  3. Step 3: Cross multiply
    30,663.35x = 42,303.43 × 17,231.52
  4. Step 4: Simplify right side
    30,663.35x = 728,952,400.11
  5. Step 5: Solve for x
    x = 728,952,400.11/30,663.35
  6. Step 6: Final answer
    x = 23,772.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.