Home / 30,720.16-46,041.90-13,169.62

Finding the Fourth Proportional to 30,720.16, 46,041.90 and 13,169.62

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Solution

The fourth proportional to 30,720.16, 46,041.90 and 13,169.62 is: 19,737.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,720.16 : 46,041.90 = 13,169.62 : x
  2. Step 2: Convert to fraction form
    30,720.16/46,041.90 = 13,169.62/x
  3. Step 3: Cross multiply
    30,720.16x = 46,041.90 × 13,169.62
  4. Step 4: Simplify right side
    30,720.16x = 606,354,327.08
  5. Step 5: Solve for x
    x = 606,354,327.08/30,720.16
  6. Step 6: Final answer
    x = 19,737.99

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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.