Home / 28,972.48-40,000.08-19,913.44

Finding the Fourth Proportional to 28,972.48, 40,000.08 and 19,913.44

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Solution

The fourth proportional to 28,972.48, 40,000.08 and 19,913.44 is: 27,492.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,972.48 : 40,000.08 = 19,913.44 : x
  2. Step 2: Convert to fraction form
    28,972.48/40,000.08 = 19,913.44/x
  3. Step 3: Cross multiply
    28,972.48x = 40,000.08 × 19,913.44
  4. Step 4: Simplify right side
    28,972.48x = 796,539,193.08
  5. Step 5: Solve for x
    x = 796,539,193.08/28,972.48
  6. Step 6: Final answer
    x = 27,492.96

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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.