Home / 30,557.95-42,169.22-16,945.92

Finding the Fourth Proportional to 30,557.95, 42,169.22 and 16,945.92

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Solution

The fourth proportional to 30,557.95, 42,169.22 and 16,945.92 is: 23,384.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,557.95 : 42,169.22 = 16,945.92 : x
  2. Step 2: Convert to fraction form
    30,557.95/42,169.22 = 16,945.92/x
  3. Step 3: Cross multiply
    30,557.95x = 42,169.22 × 16,945.92
  4. Step 4: Simplify right side
    30,557.95x = 714,596,228.58
  5. Step 5: Solve for x
    x = 714,596,228.58/30,557.95
  6. Step 6: Final answer
    x = 23,384.95

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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.