Home / 28,192.48-42,289.40-9,472.79

Finding the Fourth Proportional to 28,192.48, 42,289.40 and 9,472.79

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Solution

The fourth proportional to 28,192.48, 42,289.40 and 9,472.79 is: 14,209.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,192.48 : 42,289.40 = 9,472.79 : x
  2. Step 2: Convert to fraction form
    28,192.48/42,289.40 = 9,472.79/x
  3. Step 3: Cross multiply
    28,192.48x = 42,289.40 × 9,472.79
  4. Step 4: Simplify right side
    28,192.48x = 400,598,450.81
  5. Step 5: Solve for x
    x = 400,598,450.81/28,192.48
  6. Step 6: Final answer
    x = 14,209.41

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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.