Home / 28,583.90-42,875.87-11,934.85

Finding the Fourth Proportional to 28,583.90, 42,875.87 and 11,934.85

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Solution

The fourth proportional to 28,583.90, 42,875.87 and 11,934.85 is: 17,902.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,583.90 : 42,875.87 = 11,934.85 : x
  2. Step 2: Convert to fraction form
    28,583.90/42,875.87 = 11,934.85/x
  3. Step 3: Cross multiply
    28,583.90x = 42,875.87 × 11,934.85
  4. Step 4: Simplify right side
    28,583.90x = 511,717,077.07
  5. Step 5: Solve for x
    x = 511,717,077.07/28,583.90
  6. Step 6: Final answer
    x = 17,902.28

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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.