Home / 27,798.08-38,361.36-15,223.60

Finding the Fourth Proportional to 27,798.08, 38,361.36 and 15,223.60

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Solution

The fourth proportional to 27,798.08, 38,361.36 and 15,223.60 is: 21,008.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,798.08 : 38,361.36 = 15,223.60 : x
  2. Step 2: Convert to fraction form
    27,798.08/38,361.36 = 15,223.60/x
  3. Step 3: Cross multiply
    27,798.08x = 38,361.36 × 15,223.60
  4. Step 4: Simplify right side
    27,798.08x = 583,998,000.10
  5. Step 5: Solve for x
    x = 583,998,000.10/27,798.08
  6. Step 6: Final answer
    x = 21,008.57

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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.