Home / 28,278.77-42,418.26-9,558.95

Finding the Fourth Proportional to 28,278.77, 42,418.26 and 9,558.95

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Solution

The fourth proportional to 28,278.77, 42,418.26 and 9,558.95 is: 14,338.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,278.77 : 42,418.26 = 9,558.95 : x
  2. Step 2: Convert to fraction form
    28,278.77/42,418.26 = 9,558.95/x
  3. Step 3: Cross multiply
    28,278.77x = 42,418.26 × 9,558.95
  4. Step 4: Simplify right side
    28,278.77x = 405,473,814.34
  5. Step 5: Solve for x
    x = 405,473,814.34/28,278.77
  6. Step 6: Final answer
    x = 14,338.46

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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.