Home / 23,430.79-32,334.96-12,820.65

Finding the Fourth Proportional to 23,430.79, 32,334.96 and 12,820.65

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Solution

The fourth proportional to 23,430.79, 32,334.96 and 12,820.65 is: 17,692.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,430.79 : 32,334.96 = 12,820.65 : x
  2. Step 2: Convert to fraction form
    23,430.79/32,334.96 = 12,820.65/x
  3. Step 3: Cross multiply
    23,430.79x = 32,334.96 × 12,820.65
  4. Step 4: Simplify right side
    23,430.79x = 414,555,204.92
  5. Step 5: Solve for x
    x = 414,555,204.92/23,430.79
  6. Step 6: Final answer
    x = 17,692.75

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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.