Home / 28,957.28-43,353.99-18,401.13

Finding the Fourth Proportional to 28,957.28, 43,353.99 and 18,401.13

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Solution

The fourth proportional to 28,957.28, 43,353.99 and 18,401.13 is: 27,549.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,957.28 : 43,353.99 = 18,401.13 : x
  2. Step 2: Convert to fraction form
    28,957.28/43,353.99 = 18,401.13/x
  3. Step 3: Cross multiply
    28,957.28x = 43,353.99 × 18,401.13
  4. Step 4: Simplify right side
    28,957.28x = 797,762,406.01
  5. Step 5: Solve for x
    x = 797,762,406.01/28,957.28
  6. Step 6: Final answer
    x = 27,549.64

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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.