Home / 23,688.32-32,689.92-13,078.40

Finding the Fourth Proportional to 23,688.32, 32,689.92 and 13,078.40

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Solution

The fourth proportional to 23,688.32, 32,689.92 and 13,078.40 is: 18,048.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,688.32 : 32,689.92 = 13,078.40 : x
  2. Step 2: Convert to fraction form
    23,688.32/32,689.92 = 13,078.40/x
  3. Step 3: Cross multiply
    23,688.32x = 32,689.92 × 13,078.40
  4. Step 4: Simplify right side
    23,688.32x = 427,531,849.73
  5. Step 5: Solve for x
    x = 427,531,849.73/23,688.32
  6. Step 6: Final answer
    x = 18,048.21

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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.