Home / 23,450.64-32,360.40-12,840.40

Finding the Fourth Proportional to 23,450.64, 32,360.40 and 12,840.40

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Solution

The fourth proportional to 23,450.64, 32,360.40 and 12,840.40 is: 17,718.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,450.64 : 32,360.40 = 12,840.40 : x
  2. Step 2: Convert to fraction form
    23,450.64/32,360.40 = 12,840.40/x
  3. Step 3: Cross multiply
    23,450.64x = 32,360.40 × 12,840.40
  4. Step 4: Simplify right side
    23,450.64x = 415,520,480.16
  5. Step 5: Solve for x
    x = 415,520,480.16/23,450.64
  6. Step 6: Final answer
    x = 17,718.94

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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.