Home / 30,388.41-41,931.86-16,957.95

Finding the Fourth Proportional to 30,388.41, 41,931.86 and 16,957.95

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Solution

The fourth proportional to 30,388.41, 41,931.86 and 16,957.95 is: 23,399.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,388.41 : 41,931.86 = 16,957.95 : x
  2. Step 2: Convert to fraction form
    30,388.41/41,931.86 = 16,957.95/x
  3. Step 3: Cross multiply
    30,388.41x = 41,931.86 × 16,957.95
  4. Step 4: Simplify right side
    30,388.41x = 711,078,385.29
  5. Step 5: Solve for x
    x = 711,078,385.29/30,388.41
  6. Step 6: Final answer
    x = 23,399.66

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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.