Home / 30,952.80-42,717.24-18,851.94

Finding the Fourth Proportional to 30,952.80, 42,717.24 and 18,851.94

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Solution

The fourth proportional to 30,952.80, 42,717.24 and 18,851.94 is: 26,017.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,952.80 : 42,717.24 = 18,851.94 : x
  2. Step 2: Convert to fraction form
    30,952.80/42,717.24 = 18,851.94/x
  3. Step 3: Cross multiply
    30,952.80x = 42,717.24 × 18,851.94
  4. Step 4: Simplify right side
    30,952.80x = 805,302,845.45
  5. Step 5: Solve for x
    x = 805,302,845.45/30,952.80
  6. Step 6: Final answer
    x = 26,017.12

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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.