Home / 27,485.18-37,930.39-15,548.28

Finding the Fourth Proportional to 27,485.18, 37,930.39 and 15,548.28

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Solution

The fourth proportional to 27,485.18, 37,930.39 and 15,548.28 is: 21,457.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,485.18 : 37,930.39 = 15,548.28 : x
  2. Step 2: Convert to fraction form
    27,485.18/37,930.39 = 15,548.28/x
  3. Step 3: Cross multiply
    27,485.18x = 37,930.39 × 15,548.28
  4. Step 4: Simplify right side
    27,485.18x = 589,752,230.58
  5. Step 5: Solve for x
    x = 589,752,230.58/27,485.18
  6. Step 6: Final answer
    x = 21,457.10

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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.