Home / 30,861.14-42,588.45-16,713.98

Finding the Fourth Proportional to 30,861.14, 42,588.45 and 16,713.98

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Solution

The fourth proportional to 30,861.14, 42,588.45 and 16,713.98 is: 23,065.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,861.14 : 42,588.45 = 16,713.98 : x
  2. Step 2: Convert to fraction form
    30,861.14/42,588.45 = 16,713.98/x
  3. Step 3: Cross multiply
    30,861.14x = 42,588.45 × 16,713.98
  4. Step 4: Simplify right side
    30,861.14x = 711,822,501.53
  5. Step 5: Solve for x
    x = 711,822,501.53/30,861.14
  6. Step 6: Final answer
    x = 23,065.33

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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.