Home / 28,281.58-42,422.47-9,561.77

Finding the Fourth Proportional to 28,281.58, 42,422.47 and 9,561.77

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Solution

The fourth proportional to 28,281.58, 42,422.47 and 9,561.77 is: 14,342.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,281.58 : 42,422.47 = 9,561.77 : x
  2. Step 2: Convert to fraction form
    28,281.58/42,422.47 = 9,561.77/x
  3. Step 3: Cross multiply
    28,281.58x = 42,422.47 × 9,561.77
  4. Step 4: Simplify right side
    28,281.58x = 405,633,824.04
  5. Step 5: Solve for x
    x = 405,633,824.04/28,281.58
  6. Step 6: Final answer
    x = 14,342.69

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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.