Home / 30,798.11-42,501.44-16,650.95

Finding the Fourth Proportional to 30,798.11, 42,501.44 and 16,650.95

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Solution

The fourth proportional to 30,798.11, 42,501.44 and 16,650.95 is: 22,978.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,798.11 : 42,501.44 = 16,650.95 : x
  2. Step 2: Convert to fraction form
    30,798.11/42,501.44 = 16,650.95/x
  3. Step 3: Cross multiply
    30,798.11x = 42,501.44 × 16,650.95
  4. Step 4: Simplify right side
    30,798.11x = 707,689,500.25
  5. Step 5: Solve for x
    x = 707,689,500.25/30,798.11
  6. Step 6: Final answer
    x = 22,978.34

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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.