Home / 28,795.78-43,192.86-15,730.89

Finding the Fourth Proportional to 28,795.78, 43,192.86 and 15,730.89

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Solution

The fourth proportional to 28,795.78, 43,192.86 and 15,730.89 is: 23,595.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,795.78 : 43,192.86 = 15,730.89 : x
  2. Step 2: Convert to fraction form
    28,795.78/43,192.86 = 15,730.89/x
  3. Step 3: Cross multiply
    28,795.78x = 43,192.86 × 15,730.89
  4. Step 4: Simplify right side
    28,795.78x = 679,462,129.45
  5. Step 5: Solve for x
    x = 679,462,129.45/28,795.78
  6. Step 6: Final answer
    x = 23,595.89

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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.