Home / 28,960.02-39,902.40-19,512.18

Finding the Fourth Proportional to 28,960.02, 39,902.40 and 19,512.18

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Solution

The fourth proportional to 28,960.02, 39,902.40 and 19,512.18 is: 26,884.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,960.02 : 39,902.40 = 19,512.18 : x
  2. Step 2: Convert to fraction form
    28,960.02/39,902.40 = 19,512.18/x
  3. Step 3: Cross multiply
    28,960.02x = 39,902.40 × 19,512.18
  4. Step 4: Simplify right side
    28,960.02x = 778,582,811.23
  5. Step 5: Solve for x
    x = 778,582,811.23/28,960.02
  6. Step 6: Final answer
    x = 26,884.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.