Home / 30,726.18-46,126.08-20,835.45

Finding the Fourth Proportional to 30,726.18, 46,126.08 and 20,835.45

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Solution

The fourth proportional to 30,726.18, 46,126.08 and 20,835.45 is: 31,278.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,726.18 : 46,126.08 = 20,835.45 : x
  2. Step 2: Convert to fraction form
    30,726.18/46,126.08 = 20,835.45/x
  3. Step 3: Cross multiply
    30,726.18x = 46,126.08 × 20,835.45
  4. Step 4: Simplify right side
    30,726.18x = 961,057,633.54
  5. Step 5: Solve for x
    x = 961,057,633.54/30,726.18
  6. Step 6: Final answer
    x = 31,278.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.