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Finding the Fourth Proportional to 29,895.90, 40,957.54 and 28,774.86

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Solution

The fourth proportional to 29,895.90, 40,957.54 and 28,774.86 is: 39,421.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,895.90 : 40,957.54 = 28,774.86 : x
  2. Step 2: Convert to fraction form
    29,895.90/40,957.54 = 28,774.86/x
  3. Step 3: Cross multiply
    29,895.90x = 40,957.54 × 28,774.86
  4. Step 4: Simplify right side
    29,895.90x = 1,178,547,479.44
  5. Step 5: Solve for x
    x = 1,178,547,479.44/29,895.90
  6. Step 6: Final answer
    x = 39,421.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.