Home / 23,739.18-32,759.70-13,128.57

Finding the Fourth Proportional to 23,739.18, 32,759.70 and 13,128.57

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Solution

The fourth proportional to 23,739.18, 32,759.70 and 13,128.57 is: 18,117.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,739.18 : 32,759.70 = 13,128.57 : x
  2. Step 2: Convert to fraction form
    23,739.18/32,759.70 = 13,128.57/x
  3. Step 3: Cross multiply
    23,739.18x = 32,759.70 × 13,128.57
  4. Step 4: Simplify right side
    23,739.18x = 430,088,014.63
  5. Step 5: Solve for x
    x = 430,088,014.63/23,739.18
  6. Step 6: Final answer
    x = 18,117.22

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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.