Home / 28,257.93-42,355.80-12,446.19

Finding the Fourth Proportional to 28,257.93, 42,355.80 and 12,446.19

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Solution

The fourth proportional to 28,257.93, 42,355.80 and 12,446.19 is: 18,655.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,257.93 : 42,355.80 = 12,446.19 : x
  2. Step 2: Convert to fraction form
    28,257.93/42,355.80 = 12,446.19/x
  3. Step 3: Cross multiply
    28,257.93x = 42,355.80 × 12,446.19
  4. Step 4: Simplify right side
    28,257.93x = 527,168,334.40
  5. Step 5: Solve for x
    x = 527,168,334.40/28,257.93
  6. Step 6: Final answer
    x = 18,655.59

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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.