Home / 28,515.01-42,773.95-12,717.32

Finding the Fourth Proportional to 28,515.01, 42,773.95 and 12,717.32

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Solution

The fourth proportional to 28,515.01, 42,773.95 and 12,717.32 is: 19,076.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,515.01 : 42,773.95 = 12,717.32 : x
  2. Step 2: Convert to fraction form
    28,515.01/42,773.95 = 12,717.32/x
  3. Step 3: Cross multiply
    28,515.01x = 42,773.95 × 12,717.32
  4. Step 4: Simplify right side
    28,515.01x = 543,970,009.81
  5. Step 5: Solve for x
    x = 543,970,009.81/28,515.01
  6. Step 6: Final answer
    x = 19,076.62

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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.