Home / 23,415.20-32,312.64-12,804.56

Finding the Fourth Proportional to 23,415.20, 32,312.64 and 12,804.56

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Solution

The fourth proportional to 23,415.20, 32,312.64 and 12,804.56 is: 17,670.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,415.20 : 32,312.64 = 12,804.56 : x
  2. Step 2: Convert to fraction form
    23,415.20/32,312.64 = 12,804.56/x
  3. Step 3: Cross multiply
    23,415.20x = 32,312.64 × 12,804.56
  4. Step 4: Simplify right side
    23,415.20x = 413,749,137.64
  5. Step 5: Solve for x
    x = 413,749,137.64/23,415.20
  6. Step 6: Final answer
    x = 17,670.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.