Home / 30,954.84-42,717-16,807.68

Finding the Fourth Proportional to 30,954.84, 42,717 and 16,807.68

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Solution

The fourth proportional to 30,954.84, 42,717 and 16,807.68 is: 23,194.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,954.84 : 42,717 = 16,807.68 : x
  2. Step 2: Convert to fraction form
    30,954.84/42,717 = 16,807.68/x
  3. Step 3: Cross multiply
    30,954.84x = 42,717 × 16,807.68
  4. Step 4: Simplify right side
    30,954.84x = 717,973,666.56
  5. Step 5: Solve for x
    x = 717,973,666.56/30,954.84
  6. Step 6: Final answer
    x = 23,194.23

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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.