Home / 30,345.48-41,878.26-16,917.84

Finding the Fourth Proportional to 30,345.48, 41,878.26 and 16,917.84

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Solution

The fourth proportional to 30,345.48, 41,878.26 and 16,917.84 is: 23,347.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,345.48 : 41,878.26 = 16,917.84 : x
  2. Step 2: Convert to fraction form
    30,345.48/41,878.26 = 16,917.84/x
  3. Step 3: Cross multiply
    30,345.48x = 41,878.26 × 16,917.84
  4. Step 4: Simplify right side
    30,345.48x = 708,489,702.16
  5. Step 5: Solve for x
    x = 708,489,702.16/30,345.48
  6. Step 6: Final answer
    x = 23,347.45

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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.