Home / 15,783.20-23,643.60-10,240.40

Finding the Fourth Proportional to 15,783.20, 23,643.60 and 10,240.40

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Solution

The fourth proportional to 15,783.20, 23,643.60 and 10,240.40 is: 15,340.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,783.20 : 23,643.60 = 10,240.40 : x
  2. Step 2: Convert to fraction form
    15,783.20/23,643.60 = 10,240.40/x
  3. Step 3: Cross multiply
    15,783.20x = 23,643.60 × 10,240.40
  4. Step 4: Simplify right side
    15,783.20x = 242,119,921.44
  5. Step 5: Solve for x
    x = 242,119,921.44/15,783.20
  6. Step 6: Final answer
    x = 15,340.36

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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.