Home / 28,030.28-38,684.52-20,944.40

Finding the Fourth Proportional to 28,030.28, 38,684.52 and 20,944.40

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Solution

The fourth proportional to 28,030.28, 38,684.52 and 20,944.40 is: 28,905.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,030.28 : 38,684.52 = 20,944.40 : x
  2. Step 2: Convert to fraction form
    28,030.28/38,684.52 = 20,944.40/x
  3. Step 3: Cross multiply
    28,030.28x = 38,684.52 × 20,944.40
  4. Step 4: Simplify right side
    28,030.28x = 810,224,060.69
  5. Step 5: Solve for x
    x = 810,224,060.69/28,030.28
  6. Step 6: Final answer
    x = 28,905.31

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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.