Home / 28,278.20-42,368.70-23,904.20

Finding the Fourth Proportional to 28,278.20, 42,368.70 and 23,904.20

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Solution

The fourth proportional to 28,278.20, 42,368.70 and 23,904.20 is: 35,815.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,278.20 : 42,368.70 = 23,904.20 : x
  2. Step 2: Convert to fraction form
    28,278.20/42,368.70 = 23,904.20/x
  3. Step 3: Cross multiply
    28,278.20x = 42,368.70 × 23,904.20
  4. Step 4: Simplify right side
    28,278.20x = 1,012,789,878.54
  5. Step 5: Solve for x
    x = 1,012,789,878.54/28,278.20
  6. Step 6: Final answer
    x = 35,815.22

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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.