Home / 31,056.84-42,857.19-16,909.38

Finding the Fourth Proportional to 31,056.84, 42,857.19 and 16,909.38

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Solution

The fourth proportional to 31,056.84, 42,857.19 and 16,909.38 is: 23,334.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,056.84 : 42,857.19 = 16,909.38 : x
  2. Step 2: Convert to fraction form
    31,056.84/42,857.19 = 16,909.38/x
  3. Step 3: Cross multiply
    31,056.84x = 42,857.19 × 16,909.38
  4. Step 4: Simplify right side
    31,056.84x = 724,688,511.44
  5. Step 5: Solve for x
    x = 724,688,511.44/31,056.84
  6. Step 6: Final answer
    x = 23,334.26

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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.