Home / 28,025.60-42,029.25-9,300.60

Finding the Fourth Proportional to 28,025.60, 42,029.25 and 9,300.60

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Solution

The fourth proportional to 28,025.60, 42,029.25 and 9,300.60 is: 13,947.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,025.60 : 42,029.25 = 9,300.60 : x
  2. Step 2: Convert to fraction form
    28,025.60/42,029.25 = 9,300.60/x
  3. Step 3: Cross multiply
    28,025.60x = 42,029.25 × 9,300.60
  4. Step 4: Simplify right side
    28,025.60x = 390,897,196.05
  5. Step 5: Solve for x
    x = 390,897,196.05/28,025.60
  6. Step 6: Final answer
    x = 13,947.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.