Home / 30,898.09-42,639.65-16,750.97

Finding the Fourth Proportional to 30,898.09, 42,639.65 and 16,750.97

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Solution

The fourth proportional to 30,898.09, 42,639.65 and 16,750.97 is: 23,116.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,898.09 : 42,639.65 = 16,750.97 : x
  2. Step 2: Convert to fraction form
    30,898.09/42,639.65 = 16,750.97/x
  3. Step 3: Cross multiply
    30,898.09x = 42,639.65 × 16,750.97
  4. Step 4: Simplify right side
    30,898.09x = 714,255,497.96
  5. Step 5: Solve for x
    x = 714,255,497.96/30,898.09
  6. Step 6: Final answer
    x = 23,116.49

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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.