Home / 30,920.04-42,669.36-16,772.94

Finding the Fourth Proportional to 30,920.04, 42,669.36 and 16,772.94

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Solution

The fourth proportional to 30,920.04, 42,669.36 and 16,772.94 is: 23,146.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,920.04 : 42,669.36 = 16,772.94 : x
  2. Step 2: Convert to fraction form
    30,920.04/42,669.36 = 16,772.94/x
  3. Step 3: Cross multiply
    30,920.04x = 42,669.36 × 16,772.94
  4. Step 4: Simplify right side
    30,920.04x = 715,690,615.12
  5. Step 5: Solve for x
    x = 715,690,615.12/30,920.04
  6. Step 6: Final answer
    x = 23,146.50

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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.