Home / 20,389.11-30,583.65-5,598.09

Finding the Fourth Proportional to 20,389.11, 30,583.65 and 5,598.09

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Solution

The fourth proportional to 20,389.11, 30,583.65 and 5,598.09 is: 8,397.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,389.11 : 30,583.65 = 5,598.09 : x
  2. Step 2: Convert to fraction form
    20,389.11/30,583.65 = 5,598.09/x
  3. Step 3: Cross multiply
    20,389.11x = 30,583.65 × 5,598.09
  4. Step 4: Simplify right side
    20,389.11x = 171,210,025.23
  5. Step 5: Solve for x
    x = 171,210,025.23/20,389.11
  6. Step 6: Final answer
    x = 8,397.13

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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.