Home / 28,114.66-38,830.11-19,146.58

Finding the Fourth Proportional to 28,114.66, 38,830.11 and 19,146.58

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Solution

The fourth proportional to 28,114.66, 38,830.11 and 19,146.58 is: 26,443.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,114.66 : 38,830.11 = 19,146.58 : x
  2. Step 2: Convert to fraction form
    28,114.66/38,830.11 = 19,146.58/x
  3. Step 3: Cross multiply
    28,114.66x = 38,830.11 × 19,146.58
  4. Step 4: Simplify right side
    28,114.66x = 743,463,807.52
  5. Step 5: Solve for x
    x = 743,463,807.52/28,114.66
  6. Step 6: Final answer
    x = 26,443.99

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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.