Home / 27,798.88-38,362.40-15,223.60

Finding the Fourth Proportional to 27,798.88, 38,362.40 and 15,223.60

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Solution

The fourth proportional to 27,798.88, 38,362.40 and 15,223.60 is: 21,008.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,798.88 : 38,362.40 = 15,223.60 : x
  2. Step 2: Convert to fraction form
    27,798.88/38,362.40 = 15,223.60/x
  3. Step 3: Cross multiply
    27,798.88x = 38,362.40 × 15,223.60
  4. Step 4: Simplify right side
    27,798.88x = 584,013,832.64
  5. Step 5: Solve for x
    x = 584,013,832.64/27,798.88
  6. Step 6: Final answer
    x = 21,008.54

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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.