Home / 28,345.83-39,117.27-15,770.58

Finding the Fourth Proportional to 28,345.83, 39,117.27 and 15,770.58

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Solution

The fourth proportional to 28,345.83, 39,117.27 and 15,770.58 is: 21,763.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,345.83 : 39,117.27 = 15,770.58 : x
  2. Step 2: Convert to fraction form
    28,345.83/39,117.27 = 15,770.58/x
  3. Step 3: Cross multiply
    28,345.83x = 39,117.27 × 15,770.58
  4. Step 4: Simplify right side
    28,345.83x = 616,902,035.92
  5. Step 5: Solve for x
    x = 616,902,035.92/28,345.83
  6. Step 6: Final answer
    x = 21,763.41

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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.