Home / 27,762.05-38,312.54-15,186.80

Finding the Fourth Proportional to 27,762.05, 38,312.54 and 15,186.80

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Solution

The fourth proportional to 27,762.05, 38,312.54 and 15,186.80 is: 20,958.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,762.05 : 38,312.54 = 15,186.80 : x
  2. Step 2: Convert to fraction form
    27,762.05/38,312.54 = 15,186.80/x
  3. Step 3: Cross multiply
    27,762.05x = 38,312.54 × 15,186.80
  4. Step 4: Simplify right side
    27,762.05x = 581,844,743.76
  5. Step 5: Solve for x
    x = 581,844,743.76/27,762.05
  6. Step 6: Final answer
    x = 20,958.28

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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.