Home / 28,362.96-42,518.08-12,559.60

Finding the Fourth Proportional to 28,362.96, 42,518.08 and 12,559.60

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Solution

The fourth proportional to 28,362.96, 42,518.08 and 12,559.60 is: 18,827.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,362.96 : 42,518.08 = 12,559.60 : x
  2. Step 2: Convert to fraction form
    28,362.96/42,518.08 = 12,559.60/x
  3. Step 3: Cross multiply
    28,362.96x = 42,518.08 × 12,559.60
  4. Step 4: Simplify right side
    28,362.96x = 534,010,077.57
  5. Step 5: Solve for x
    x = 534,010,077.57/28,362.96
  6. Step 6: Final answer
    x = 18,827.73

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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.