Home / 28,364.20-42,495.10-23,141.80

Finding the Fourth Proportional to 28,364.20, 42,495.10 and 23,141.80

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Solution

The fourth proportional to 28,364.20, 42,495.10 and 23,141.80 is: 34,670.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,364.20 : 42,495.10 = 23,141.80 : x
  2. Step 2: Convert to fraction form
    28,364.20/42,495.10 = 23,141.80/x
  3. Step 3: Cross multiply
    28,364.20x = 42,495.10 × 23,141.80
  4. Step 4: Simplify right side
    28,364.20x = 983,413,105.18
  5. Step 5: Solve for x
    x = 983,413,105.18/28,364.20
  6. Step 6: Final answer
    x = 34,670.93

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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.