Home / 20,389.64-30,581.18-5,595.10

Finding the Fourth Proportional to 20,389.64, 30,581.18 and 5,595.10

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Solution

The fourth proportional to 20,389.64, 30,581.18 and 5,595.10 is: 8,391.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,389.64 : 30,581.18 = 5,595.10 : x
  2. Step 2: Convert to fraction form
    20,389.64/30,581.18 = 5,595.10/x
  3. Step 3: Cross multiply
    20,389.64x = 30,581.18 × 5,595.10
  4. Step 4: Simplify right side
    20,389.64x = 171,104,774.21
  5. Step 5: Solve for x
    x = 171,104,774.21/20,389.64
  6. Step 6: Final answer
    x = 8,391.75

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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.