Home / 28,368.48-42,558.32-8,378.32

Finding the Fourth Proportional to 28,368.48, 42,558.32 and 8,378.32

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Solution

The fourth proportional to 28,368.48, 42,558.32 and 8,378.32 is: 12,569.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,368.48 : 42,558.32 = 8,378.32 : x
  2. Step 2: Convert to fraction form
    28,368.48/42,558.32 = 8,378.32/x
  3. Step 3: Cross multiply
    28,368.48x = 42,558.32 × 8,378.32
  4. Step 4: Simplify right side
    28,368.48x = 356,567,126.73
  5. Step 5: Solve for x
    x = 356,567,126.73/28,368.48
  6. Step 6: Final answer
    x = 12,569.13

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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.