Home / 23,688.65-32,690.12-13,078.05

Finding the Fourth Proportional to 23,688.65, 32,690.12 and 13,078.05

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Solution

The fourth proportional to 23,688.65, 32,690.12 and 13,078.05 is: 18,047.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,688.65 : 32,690.12 = 13,078.05 : x
  2. Step 2: Convert to fraction form
    23,688.65/32,690.12 = 13,078.05/x
  3. Step 3: Cross multiply
    23,688.65x = 32,690.12 × 13,078.05
  4. Step 4: Simplify right side
    23,688.65x = 427,523,023.87
  5. Step 5: Solve for x
    x = 427,523,023.87/23,688.65
  6. Step 6: Final answer
    x = 18,047.59

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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.