Home / 30,888.15-42,625.80-16,740.96

Finding the Fourth Proportional to 30,888.15, 42,625.80 and 16,740.96

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Solution

The fourth proportional to 30,888.15, 42,625.80 and 16,740.96 is: 23,102.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,888.15 : 42,625.80 = 16,740.96 : x
  2. Step 2: Convert to fraction form
    30,888.15/42,625.80 = 16,740.96/x
  3. Step 3: Cross multiply
    30,888.15x = 42,625.80 × 16,740.96
  4. Step 4: Simplify right side
    30,888.15x = 713,596,812.77
  5. Step 5: Solve for x
    x = 713,596,812.77/30,888.15
  6. Step 6: Final answer
    x = 23,102.61

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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.