Home / 30,897.96-42,639.48-16,750.84

Finding the Fourth Proportional to 30,897.96, 42,639.48 and 16,750.84

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Solution

The fourth proportional to 30,897.96, 42,639.48 and 16,750.84 is: 23,116.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,897.96 : 42,639.48 = 16,750.84 : x
  2. Step 2: Convert to fraction form
    30,897.96/42,639.48 = 16,750.84/x
  3. Step 3: Cross multiply
    30,897.96x = 42,639.48 × 16,750.84
  4. Step 4: Simplify right side
    30,897.96x = 714,247,107.16
  5. Step 5: Solve for x
    x = 714,247,107.16/30,897.96
  6. Step 6: Final answer
    x = 23,116.32

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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.