Home / 28,112.20-42,135.84-10,570.84

Finding the Fourth Proportional to 28,112.20, 42,135.84 and 10,570.84

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Solution

The fourth proportional to 28,112.20, 42,135.84 and 10,570.84 is: 15,844.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,112.20 : 42,135.84 = 10,570.84 : x
  2. Step 2: Convert to fraction form
    28,112.20/42,135.84 = 10,570.84/x
  3. Step 3: Cross multiply
    28,112.20x = 42,135.84 × 10,570.84
  4. Step 4: Simplify right side
    28,112.20x = 445,411,222.91
  5. Step 5: Solve for x
    x = 445,411,222.91/28,112.20
  6. Step 6: Final answer
    x = 15,844.05

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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.