Home / 30,379.16-45,570.12-9,317.66

Finding the Fourth Proportional to 30,379.16, 45,570.12 and 9,317.66

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Solution

The fourth proportional to 30,379.16, 45,570.12 and 9,317.66 is: 13,976.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,379.16 : 45,570.12 = 9,317.66 : x
  2. Step 2: Convert to fraction form
    30,379.16/45,570.12 = 9,317.66/x
  3. Step 3: Cross multiply
    30,379.16x = 45,570.12 × 9,317.66
  4. Step 4: Simplify right side
    30,379.16x = 424,606,884.32
  5. Step 5: Solve for x
    x = 424,606,884.32/30,379.16
  6. Step 6: Final answer
    x = 13,976.91

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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.