Home / 27,739.62-38,280.60-15,802.98

Finding the Fourth Proportional to 27,739.62, 38,280.60 and 15,802.98

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Solution

The fourth proportional to 27,739.62, 38,280.60 and 15,802.98 is: 21,808.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,739.62 : 38,280.60 = 15,802.98 : x
  2. Step 2: Convert to fraction form
    27,739.62/38,280.60 = 15,802.98/x
  3. Step 3: Cross multiply
    27,739.62x = 38,280.60 × 15,802.98
  4. Step 4: Simplify right side
    27,739.62x = 604,947,556.19
  5. Step 5: Solve for x
    x = 604,947,556.19/27,739.62
  6. Step 6: Final answer
    x = 21,808.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.