Home / 28,787.24-43,189.34-12,154.28

Finding the Fourth Proportional to 28,787.24, 43,189.34 and 12,154.28

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Solution

The fourth proportional to 28,787.24, 43,189.34 and 12,154.28 is: 18,235.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,787.24 : 43,189.34 = 12,154.28 : x
  2. Step 2: Convert to fraction form
    28,787.24/43,189.34 = 12,154.28/x
  3. Step 3: Cross multiply
    28,787.24x = 43,189.34 × 12,154.28
  4. Step 4: Simplify right side
    28,787.24x = 524,935,331.38
  5. Step 5: Solve for x
    x = 524,935,331.38/28,787.24
  6. Step 6: Final answer
    x = 18,235.00

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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.