Home / 23,289.36-32,138.35-12,679

Finding the Fourth Proportional to 23,289.36, 32,138.35 and 12,679

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Solution

The fourth proportional to 23,289.36, 32,138.35 and 12,679 is: 17,496.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,289.36 : 32,138.35 = 12,679 : x
  2. Step 2: Convert to fraction form
    23,289.36/32,138.35 = 12,679/x
  3. Step 3: Cross multiply
    23,289.36x = 32,138.35 × 12,679
  4. Step 4: Simplify right side
    23,289.36x = 407,482,139.65
  5. Step 5: Solve for x
    x = 407,482,139.65/23,289.36
  6. Step 6: Final answer
    x = 17,496.49

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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.