Home / 30,811.61-42,520.01-16,664.46

Finding the Fourth Proportional to 30,811.61, 42,520.01 and 16,664.46

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Solution

The fourth proportional to 30,811.61, 42,520.01 and 16,664.46 is: 22,996.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,811.61 : 42,520.01 = 16,664.46 : x
  2. Step 2: Convert to fraction form
    30,811.61/42,520.01 = 16,664.46/x
  3. Step 3: Cross multiply
    30,811.61x = 42,520.01 × 16,664.46
  4. Step 4: Simplify right side
    30,811.61x = 708,572,922.52
  5. Step 5: Solve for x
    x = 708,572,922.52/30,811.61
  6. Step 6: Final answer
    x = 22,996.95

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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.