Home / 23,561.28-35,346.78-7,978.50

Finding the Fourth Proportional to 23,561.28, 35,346.78 and 7,978.50

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Solution

The fourth proportional to 23,561.28, 35,346.78 and 7,978.50 is: 11,969.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,561.28 : 35,346.78 = 7,978.50 : x
  2. Step 2: Convert to fraction form
    23,561.28/35,346.78 = 7,978.50/x
  3. Step 3: Cross multiply
    23,561.28x = 35,346.78 × 7,978.50
  4. Step 4: Simplify right side
    23,561.28x = 282,014,284.23
  5. Step 5: Solve for x
    x = 282,014,284.23/23,561.28
  6. Step 6: Final answer
    x = 11,969.40

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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.