Home / 19,459.20-29,145.60-15,571.20

Finding the Fourth Proportional to 19,459.20, 29,145.60 and 15,571.20

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Solution

The fourth proportional to 19,459.20, 29,145.60 and 15,571.20 is: 23,322.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,459.20 : 29,145.60 = 15,571.20 : x
  2. Step 2: Convert to fraction form
    19,459.20/29,145.60 = 15,571.20/x
  3. Step 3: Cross multiply
    19,459.20x = 29,145.60 × 15,571.20
  4. Step 4: Simplify right side
    19,459.20x = 453,831,966.72
  5. Step 5: Solve for x
    x = 453,831,966.72/19,459.20
  6. Step 6: Final answer
    x = 23,322.23

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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.