Home / 29,306.54-40,442.96-15,878.16

Finding the Fourth Proportional to 29,306.54, 40,442.96 and 15,878.16

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Solution

The fourth proportional to 29,306.54, 40,442.96 and 15,878.16 is: 21,911.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,306.54 : 40,442.96 = 15,878.16 : x
  2. Step 2: Convert to fraction form
    29,306.54/40,442.96 = 15,878.16/x
  3. Step 3: Cross multiply
    29,306.54x = 40,442.96 × 15,878.16
  4. Step 4: Simplify right side
    29,306.54x = 642,159,829.45
  5. Step 5: Solve for x
    x = 642,159,829.45/29,306.54
  6. Step 6: Final answer
    x = 21,911.82

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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.