Home / 30,678.38-46,022.43-9,897.02

Finding the Fourth Proportional to 30,678.38, 46,022.43 and 9,897.02

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Solution

The fourth proportional to 30,678.38, 46,022.43 and 9,897.02 is: 14,847.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,678.38 : 46,022.43 = 9,897.02 : x
  2. Step 2: Convert to fraction form
    30,678.38/46,022.43 = 9,897.02/x
  3. Step 3: Cross multiply
    30,678.38x = 46,022.43 × 9,897.02
  4. Step 4: Simplify right side
    30,678.38x = 455,484,910.16
  5. Step 5: Solve for x
    x = 455,484,910.16/30,678.38
  6. Step 6: Final answer
    x = 14,847.10

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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.