Home / 28,304.59-42,457.26-12,290.44

Finding the Fourth Proportional to 28,304.59, 42,457.26 and 12,290.44

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Solution

The fourth proportional to 28,304.59, 42,457.26 and 12,290.44 is: 18,435.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,304.59 : 42,457.26 = 12,290.44 : x
  2. Step 2: Convert to fraction form
    28,304.59/42,457.26 = 12,290.44/x
  3. Step 3: Cross multiply
    28,304.59x = 42,457.26 × 12,290.44
  4. Step 4: Simplify right side
    28,304.59x = 521,818,406.59
  5. Step 5: Solve for x
    x = 521,818,406.59/28,304.59
  6. Step 6: Final answer
    x = 18,435.82

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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.