Home / 15,581.21-23,357.90-5,718.20

Finding the Fourth Proportional to 15,581.21, 23,357.90 and 5,718.20

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Solution

The fourth proportional to 15,581.21, 23,357.90 and 5,718.20 is: 8,572.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,581.21 : 23,357.90 = 5,718.20 : x
  2. Step 2: Convert to fraction form
    15,581.21/23,357.90 = 5,718.20/x
  3. Step 3: Cross multiply
    15,581.21x = 23,357.90 × 5,718.20
  4. Step 4: Simplify right side
    15,581.21x = 133,565,115.19
  5. Step 5: Solve for x
    x = 133,565,115.19/15,581.21
  6. Step 6: Final answer
    x = 8,572.19

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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.