Home / 30,864.65-46,289.78-8,680.16

Finding the Fourth Proportional to 30,864.65, 46,289.78 and 8,680.16

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Solution

The fourth proportional to 30,864.65, 46,289.78 and 8,680.16 is: 13,018.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,864.65 : 46,289.78 = 8,680.16 : x
  2. Step 2: Convert to fraction form
    30,864.65/46,289.78 = 8,680.16/x
  3. Step 3: Cross multiply
    30,864.65x = 46,289.78 × 8,680.16
  4. Step 4: Simplify right side
    30,864.65x = 401,802,801.64
  5. Step 5: Solve for x
    x = 401,802,801.64/30,864.65
  6. Step 6: Final answer
    x = 13,018.22

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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.