Home / 27,539.60-38,005.58-15,440.60

Finding the Fourth Proportional to 27,539.60, 38,005.58 and 15,440.60

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Solution

The fourth proportional to 27,539.60, 38,005.58 and 15,440.60 is: 21,308.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,539.60 : 38,005.58 = 15,440.60 : x
  2. Step 2: Convert to fraction form
    27,539.60/38,005.58 = 15,440.60/x
  3. Step 3: Cross multiply
    27,539.60x = 38,005.58 × 15,440.60
  4. Step 4: Simplify right side
    27,539.60x = 586,828,941.85
  5. Step 5: Solve for x
    x = 586,828,941.85/27,539.60
  6. Step 6: Final answer
    x = 21,308.55

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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.