Home / 27,989.58-38,586.96-20,017.92

Finding the Fourth Proportional to 27,989.58, 38,586.96 and 20,017.92

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Solution

The fourth proportional to 27,989.58, 38,586.96 and 20,017.92 is: 27,597.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,989.58 : 38,586.96 = 20,017.92 : x
  2. Step 2: Convert to fraction form
    27,989.58/38,586.96 = 20,017.92/x
  3. Step 3: Cross multiply
    27,989.58x = 38,586.96 × 20,017.92
  4. Step 4: Simplify right side
    27,989.58x = 772,430,678.32
  5. Step 5: Solve for x
    x = 772,430,678.32/27,989.58
  6. Step 6: Final answer
    x = 27,597.08

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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.