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Finding the Fourth Proportional to 43,390, 59,878.74 and 23,518

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Solution

The fourth proportional to 43,390, 59,878.74 and 23,518 is: 32,455.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,390 : 59,878.74 = 23,518 : x
  2. Step 2: Convert to fraction form
    43,390/59,878.74 = 23,518/x
  3. Step 3: Cross multiply
    43,390x = 59,878.74 × 23,518
  4. Step 4: Simplify right side
    43,390x = 1,408,228,207.32
  5. Step 5: Solve for x
    x = 1,408,228,207.32/43,390
  6. Step 6: Final answer
    x = 32,455.13

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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.