Home / 20,551.32-28,361.34-12,597.93

Finding the Fourth Proportional to 20,551.32, 28,361.34 and 12,597.93

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Solution

The fourth proportional to 20,551.32, 28,361.34 and 12,597.93 is: 17,385.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,551.32 : 28,361.34 = 12,597.93 : x
  2. Step 2: Convert to fraction form
    20,551.32/28,361.34 = 12,597.93/x
  3. Step 3: Cross multiply
    20,551.32x = 28,361.34 × 12,597.93
  4. Step 4: Simplify right side
    20,551.32x = 357,294,176.03
  5. Step 5: Solve for x
    x = 357,294,176.03/20,551.32
  6. Step 6: Final answer
    x = 17,385.46

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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.