Home / 28,830.95-43,246.16-9,109.50

Finding the Fourth Proportional to 28,830.95, 43,246.16 and 9,109.50

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Solution

The fourth proportional to 28,830.95, 43,246.16 and 9,109.50 is: 13,664.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,830.95 : 43,246.16 = 9,109.50 : x
  2. Step 2: Convert to fraction form
    28,830.95/43,246.16 = 9,109.50/x
  3. Step 3: Cross multiply
    28,830.95x = 43,246.16 × 9,109.50
  4. Step 4: Simplify right side
    28,830.95x = 393,950,917.29
  5. Step 5: Solve for x
    x = 393,950,917.29/28,830.95
  6. Step 6: Final answer
    x = 13,664.17

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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.