Home / 28,756.48-43,142.40-10,293.76

Finding the Fourth Proportional to 28,756.48, 43,142.40 and 10,293.76

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Solution

The fourth proportional to 28,756.48, 43,142.40 and 10,293.76 is: 15,443.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,756.48 : 43,142.40 = 10,293.76 : x
  2. Step 2: Convert to fraction form
    28,756.48/43,142.40 = 10,293.76/x
  3. Step 3: Cross multiply
    28,756.48x = 43,142.40 × 10,293.76
  4. Step 4: Simplify right side
    28,756.48x = 444,097,511.42
  5. Step 5: Solve for x
    x = 444,097,511.42/28,756.48
  6. Step 6: Final answer
    x = 15,443.39

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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.