Home / 20,252.34-30,389.85-8,574.30

Finding the Fourth Proportional to 20,252.34, 30,389.85 and 8,574.30

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Solution

The fourth proportional to 20,252.34, 30,389.85 and 8,574.30 is: 12,866.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,252.34 : 30,389.85 = 8,574.30 : x
  2. Step 2: Convert to fraction form
    20,252.34/30,389.85 = 8,574.30/x
  3. Step 3: Cross multiply
    20,252.34x = 30,389.85 × 8,574.30
  4. Step 4: Simplify right side
    20,252.34x = 260,571,690.86
  5. Step 5: Solve for x
    x = 260,571,690.86/20,252.34
  6. Step 6: Final answer
    x = 12,866.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.