Home / 28,738.65-43,107.93-9,018.75

Finding the Fourth Proportional to 28,738.65, 43,107.93 and 9,018.75

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Solution

The fourth proportional to 28,738.65, 43,107.93 and 9,018.75 is: 13,528.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,738.65 : 43,107.93 = 9,018.75 : x
  2. Step 2: Convert to fraction form
    28,738.65/43,107.93 = 9,018.75/x
  3. Step 3: Cross multiply
    28,738.65x = 43,107.93 × 9,018.75
  4. Step 4: Simplify right side
    28,738.65x = 388,779,643.69
  5. Step 5: Solve for x
    x = 388,779,643.69/28,738.65
  6. Step 6: Final answer
    x = 13,528.11

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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.