Home / 30,629.86-42,267.91-17,883.76

Finding the Fourth Proportional to 30,629.86, 42,267.91 and 17,883.76

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Solution

The fourth proportional to 30,629.86, 42,267.91 and 17,883.76 is: 24,678.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,629.86 : 42,267.91 = 17,883.76 : x
  2. Step 2: Convert to fraction form
    30,629.86/42,267.91 = 17,883.76/x
  3. Step 3: Cross multiply
    30,629.86x = 42,267.91 × 17,883.76
  4. Step 4: Simplify right side
    30,629.86x = 755,909,158.14
  5. Step 5: Solve for x
    x = 755,909,158.14/30,629.86
  6. Step 6: Final answer
    x = 24,678.83

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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.