Home / 18,828.86-28,243.48-5,681.34

Finding the Fourth Proportional to 18,828.86, 28,243.48 and 5,681.34

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Solution

The fourth proportional to 18,828.86, 28,243.48 and 5,681.34 is: 8,522.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,828.86 : 28,243.48 = 5,681.34 : x
  2. Step 2: Convert to fraction form
    18,828.86/28,243.48 = 5,681.34/x
  3. Step 3: Cross multiply
    18,828.86x = 28,243.48 × 5,681.34
  4. Step 4: Simplify right side
    18,828.86x = 160,460,812.66
  5. Step 5: Solve for x
    x = 160,460,812.66/18,828.86
  6. Step 6: Final answer
    x = 8,522.07

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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.