Home / 27,710.32-38,241.12-15,135.52

Finding the Fourth Proportional to 27,710.32, 38,241.12 and 15,135.52

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Solution

The fourth proportional to 27,710.32, 38,241.12 and 15,135.52 is: 20,887.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,710.32 : 38,241.12 = 15,135.52 : x
  2. Step 2: Convert to fraction form
    27,710.32/38,241.12 = 15,135.52/x
  3. Step 3: Cross multiply
    27,710.32x = 38,241.12 × 15,135.52
  4. Step 4: Simplify right side
    27,710.32x = 578,799,236.58
  5. Step 5: Solve for x
    x = 578,799,236.58/27,710.32
  6. Step 6: Final answer
    x = 20,887.50

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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.