Home / 21,720.24-32,558.22-8,565.32

Finding the Fourth Proportional to 21,720.24, 32,558.22 and 8,565.32

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Solution

The fourth proportional to 21,720.24, 32,558.22 and 8,565.32 is: 12,839.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,720.24 : 32,558.22 = 8,565.32 : x
  2. Step 2: Convert to fraction form
    21,720.24/32,558.22 = 8,565.32/x
  3. Step 3: Cross multiply
    21,720.24x = 32,558.22 × 8,565.32
  4. Step 4: Simplify right side
    21,720.24x = 278,871,572.93
  5. Step 5: Solve for x
    x = 278,871,572.93/21,720.24
  6. Step 6: Final answer
    x = 12,839.25

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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.