Home / 30,998.64-42,776.94-16,851.49

Finding the Fourth Proportional to 30,998.64, 42,776.94 and 16,851.49

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Solution

The fourth proportional to 30,998.64, 42,776.94 and 16,851.49 is: 23,254.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,998.64 : 42,776.94 = 16,851.49 : x
  2. Step 2: Convert to fraction form
    30,998.64/42,776.94 = 16,851.49/x
  3. Step 3: Cross multiply
    30,998.64x = 42,776.94 × 16,851.49
  4. Step 4: Simplify right side
    30,998.64x = 720,855,038.10
  5. Step 5: Solve for x
    x = 720,855,038.10/30,998.64
  6. Step 6: Final answer
    x = 23,254.41

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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.