Home / 28,570.20-39,426.85-15,994.95

Finding the Fourth Proportional to 28,570.20, 39,426.85 and 15,994.95

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Solution

The fourth proportional to 28,570.20, 39,426.85 and 15,994.95 is: 22,073.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,570.20 : 39,426.85 = 15,994.95 : x
  2. Step 2: Convert to fraction form
    28,570.20/39,426.85 = 15,994.95/x
  3. Step 3: Cross multiply
    28,570.20x = 39,426.85 × 15,994.95
  4. Step 4: Simplify right side
    28,570.20x = 630,630,494.41
  5. Step 5: Solve for x
    x = 630,630,494.41/28,570.20
  6. Step 6: Final answer
    x = 22,073.02

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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.