Home / 28,050.92-38,709.54-15,475.40

Finding the Fourth Proportional to 28,050.92, 38,709.54 and 15,475.40

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Solution

The fourth proportional to 28,050.92, 38,709.54 and 15,475.40 is: 21,355.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,050.92 : 38,709.54 = 15,475.40 : x
  2. Step 2: Convert to fraction form
    28,050.92/38,709.54 = 15,475.40/x
  3. Step 3: Cross multiply
    28,050.92x = 38,709.54 × 15,475.40
  4. Step 4: Simplify right side
    28,050.92x = 599,045,615.32
  5. Step 5: Solve for x
    x = 599,045,615.32/28,050.92
  6. Step 6: Final answer
    x = 21,355.65

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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.