Home / 28,759.68-43,128.59-13,762.33

Finding the Fourth Proportional to 28,759.68, 43,128.59 and 13,762.33

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Solution

The fourth proportional to 28,759.68, 43,128.59 and 13,762.33 is: 20,638.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,759.68 : 43,128.59 = 13,762.33 : x
  2. Step 2: Convert to fraction form
    28,759.68/43,128.59 = 13,762.33/x
  3. Step 3: Cross multiply
    28,759.68x = 43,128.59 × 13,762.33
  4. Step 4: Simplify right side
    28,759.68x = 593,549,711.38
  5. Step 5: Solve for x
    x = 593,549,711.38/28,759.68
  6. Step 6: Final answer
    x = 20,638.26

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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.