Home / 30,855.99-42,581.49-16,708.86

Finding the Fourth Proportional to 30,855.99, 42,581.49 and 16,708.86

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Solution

The fourth proportional to 30,855.99, 42,581.49 and 16,708.86 is: 23,058.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,855.99 : 42,581.49 = 16,708.86 : x
  2. Step 2: Convert to fraction form
    30,855.99/42,581.49 = 16,708.86/x
  3. Step 3: Cross multiply
    30,855.99x = 42,581.49 × 16,708.86
  4. Step 4: Simplify right side
    30,855.99x = 711,488,155.00
  5. Step 5: Solve for x
    x = 711,488,155.00/30,855.99
  6. Step 6: Final answer
    x = 23,058.35

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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.