Home / 30,516.75-42,111.09-16,904.70

Finding the Fourth Proportional to 30,516.75, 42,111.09 and 16,904.70

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Solution

The fourth proportional to 30,516.75, 42,111.09 and 16,904.70 is: 23,327.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,516.75 : 42,111.09 = 16,904.70 : x
  2. Step 2: Convert to fraction form
    30,516.75/42,111.09 = 16,904.70/x
  3. Step 3: Cross multiply
    30,516.75x = 42,111.09 × 16,904.70
  4. Step 4: Simplify right side
    30,516.75x = 711,875,343.12
  5. Step 5: Solve for x
    x = 711,875,343.12/30,516.75
  6. Step 6: Final answer
    x = 23,327.36

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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.