Home / 25,320.36-37,980.64-7,790.08

Finding the Fourth Proportional to 25,320.36, 37,980.64 and 7,790.08

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Solution

The fourth proportional to 25,320.36, 37,980.64 and 7,790.08 is: 11,685.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,320.36 : 37,980.64 = 7,790.08 : x
  2. Step 2: Convert to fraction form
    25,320.36/37,980.64 = 7,790.08/x
  3. Step 3: Cross multiply
    25,320.36x = 37,980.64 × 7,790.08
  4. Step 4: Simplify right side
    25,320.36x = 295,872,224.05
  5. Step 5: Solve for x
    x = 295,872,224.05/25,320.36
  6. Step 6: Final answer
    x = 11,685.15

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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.