Home / 30,585.20-45,880.53-11,864.78

Finding the Fourth Proportional to 30,585.20, 45,880.53 and 11,864.78

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Solution

The fourth proportional to 30,585.20, 45,880.53 and 11,864.78 is: 17,798.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,585.20 : 45,880.53 = 11,864.78 : x
  2. Step 2: Convert to fraction form
    30,585.20/45,880.53 = 11,864.78/x
  3. Step 3: Cross multiply
    30,585.20x = 45,880.53 × 11,864.78
  4. Step 4: Simplify right side
    30,585.20x = 544,362,292.89
  5. Step 5: Solve for x
    x = 544,362,292.89/30,585.20
  6. Step 6: Final answer
    x = 17,798.23

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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.