Home / 30,950.15-42,710.79-17,521.06

Finding the Fourth Proportional to 30,950.15, 42,710.79 and 17,521.06

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Solution

The fourth proportional to 30,950.15, 42,710.79 and 17,521.06 is: 24,178.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,950.15 : 42,710.79 = 17,521.06 : x
  2. Step 2: Convert to fraction form
    30,950.15/42,710.79 = 17,521.06/x
  3. Step 3: Cross multiply
    30,950.15x = 42,710.79 × 17,521.06
  4. Step 4: Simplify right side
    30,950.15x = 748,338,353.25
  5. Step 5: Solve for x
    x = 748,338,353.25/30,950.15
  6. Step 6: Final answer
    x = 24,178.83

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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.