Home / 28,036.62-42,040.26-8,312.58

Finding the Fourth Proportional to 28,036.62, 42,040.26 and 8,312.58

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Solution

The fourth proportional to 28,036.62, 42,040.26 and 8,312.58 is: 12,464.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,036.62 : 42,040.26 = 8,312.58 : x
  2. Step 2: Convert to fraction form
    28,036.62/42,040.26 = 8,312.58/x
  3. Step 3: Cross multiply
    28,036.62x = 42,040.26 × 8,312.58
  4. Step 4: Simplify right side
    28,036.62x = 349,463,024.47
  5. Step 5: Solve for x
    x = 349,463,024.47/28,036.62
  6. Step 6: Final answer
    x = 12,464.52

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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.