Home / 31,058.99-42,861.22-16,911.80

Finding the Fourth Proportional to 31,058.99, 42,861.22 and 16,911.80

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Solution

The fourth proportional to 31,058.99, 42,861.22 and 16,911.80 is: 23,338.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,058.99 : 42,861.22 = 16,911.80 : x
  2. Step 2: Convert to fraction form
    31,058.99/42,861.22 = 16,911.80/x
  3. Step 3: Cross multiply
    31,058.99x = 42,861.22 × 16,911.80
  4. Step 4: Simplify right side
    31,058.99x = 724,860,123.81
  5. Step 5: Solve for x
    x = 724,860,123.81/31,058.99
  6. Step 6: Final answer
    x = 23,338.18

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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.