Home / 28,346.58-39,117.33-15,771.06

Finding the Fourth Proportional to 28,346.58, 39,117.33 and 15,771.06

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Solution

The fourth proportional to 28,346.58, 39,117.33 and 15,771.06 is: 21,763.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,346.58 : 39,117.33 = 15,771.06 : x
  2. Step 2: Convert to fraction form
    28,346.58/39,117.33 = 15,771.06/x
  3. Step 3: Cross multiply
    28,346.58x = 39,117.33 × 15,771.06
  4. Step 4: Simplify right side
    28,346.58x = 616,921,758.47
  5. Step 5: Solve for x
    x = 616,921,758.47/28,346.58
  6. Step 6: Final answer
    x = 21,763.53

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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.