Home / 30,860.12-42,587-16,712.98

Finding the Fourth Proportional to 30,860.12, 42,587 and 16,712.98

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Solution

The fourth proportional to 30,860.12, 42,587 and 16,712.98 is: 23,063.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,860.12 : 42,587 = 16,712.98 : x
  2. Step 2: Convert to fraction form
    30,860.12/42,587 = 16,712.98/x
  3. Step 3: Cross multiply
    30,860.12x = 42,587 × 16,712.98
  4. Step 4: Simplify right side
    30,860.12x = 711,755,679.26
  5. Step 5: Solve for x
    x = 711,755,679.26/30,860.12
  6. Step 6: Final answer
    x = 23,063.93

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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.