Home / 28,050.35-38,709.47-15,475.10

Finding the Fourth Proportional to 28,050.35, 38,709.47 and 15,475.10

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Solution

The fourth proportional to 28,050.35, 38,709.47 and 15,475.10 is: 21,355.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,050.35 : 38,709.47 = 15,475.10 : x
  2. Step 2: Convert to fraction form
    28,050.35/38,709.47 = 15,475.10/x
  3. Step 3: Cross multiply
    28,050.35x = 38,709.47 × 15,475.10
  4. Step 4: Simplify right side
    28,050.35x = 599,032,919.20
  5. Step 5: Solve for x
    x = 599,032,919.20/28,050.35
  6. Step 6: Final answer
    x = 21,355.63

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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.