Home / 28,579.68-42,875.28-10,124.64

Finding the Fourth Proportional to 28,579.68, 42,875.28 and 10,124.64

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Solution

The fourth proportional to 28,579.68, 42,875.28 and 10,124.64 is: 15,189.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,579.68 : 42,875.28 = 10,124.64 : x
  2. Step 2: Convert to fraction form
    28,579.68/42,875.28 = 10,124.64/x
  3. Step 3: Cross multiply
    28,579.68x = 42,875.28 × 10,124.64
  4. Step 4: Simplify right side
    28,579.68x = 434,096,774.90
  5. Step 5: Solve for x
    x = 434,096,774.90/28,579.68
  6. Step 6: Final answer
    x = 15,189.00

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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.