Home / 30,855.96-42,581.25-16,708.77

Finding the Fourth Proportional to 30,855.96, 42,581.25 and 16,708.77

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Solution

The fourth proportional to 30,855.96, 42,581.25 and 16,708.77 is: 23,058.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,855.96 : 42,581.25 = 16,708.77 : x
  2. Step 2: Convert to fraction form
    30,855.96/42,581.25 = 16,708.77/x
  3. Step 3: Cross multiply
    30,855.96x = 42,581.25 × 16,708.77
  4. Step 4: Simplify right side
    30,855.96x = 711,480,312.56
  5. Step 5: Solve for x
    x = 711,480,312.56/30,855.96
  6. Step 6: Final answer
    x = 23,058.12

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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.