Home / 28,321.14-39,111.48-23,334.78

Finding the Fourth Proportional to 28,321.14, 39,111.48 and 23,334.78

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Solution

The fourth proportional to 28,321.14, 39,111.48 and 23,334.78 is: 32,225.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,321.14 : 39,111.48 = 23,334.78 : x
  2. Step 2: Convert to fraction form
    28,321.14/39,111.48 = 23,334.78/x
  3. Step 3: Cross multiply
    28,321.14x = 39,111.48 × 23,334.78
  4. Step 4: Simplify right side
    28,321.14x = 912,657,781.27
  5. Step 5: Solve for x
    x = 912,657,781.27/28,321.14
  6. Step 6: Final answer
    x = 32,225.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.