Home / 31,026.08-42,815.75-16,878.93

Finding the Fourth Proportional to 31,026.08, 42,815.75 and 16,878.93

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Solution

The fourth proportional to 31,026.08, 42,815.75 and 16,878.93 is: 23,292.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,026.08 : 42,815.75 = 16,878.93 : x
  2. Step 2: Convert to fraction form
    31,026.08/42,815.75 = 16,878.93/x
  3. Step 3: Cross multiply
    31,026.08x = 42,815.75 × 16,878.93
  4. Step 4: Simplify right side
    31,026.08x = 722,683,962.75
  5. Step 5: Solve for x
    x = 722,683,962.75/31,026.08
  6. Step 6: Final answer
    x = 23,292.79

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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.