Home / 30,879.18-46,315.44-8,693.28

Finding the Fourth Proportional to 30,879.18, 46,315.44 and 8,693.28

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Solution

The fourth proportional to 30,879.18, 46,315.44 and 8,693.28 is: 13,038.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,879.18 : 46,315.44 = 8,693.28 : x
  2. Step 2: Convert to fraction form
    30,879.18/46,315.44 = 8,693.28/x
  3. Step 3: Cross multiply
    30,879.18x = 46,315.44 × 8,693.28
  4. Step 4: Simplify right side
    30,879.18x = 402,633,088.24
  5. Step 5: Solve for x
    x = 402,633,088.24/30,879.18
  6. Step 6: Final answer
    x = 13,038.98

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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.