Home / 23,420.13-32,319.77-12,809.76

Finding the Fourth Proportional to 23,420.13, 32,319.77 and 12,809.76

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Solution

The fourth proportional to 23,420.13, 32,319.77 and 12,809.76 is: 17,677.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,420.13 : 32,319.77 = 12,809.76 : x
  2. Step 2: Convert to fraction form
    23,420.13/32,319.77 = 12,809.76/x
  3. Step 3: Cross multiply
    23,420.13x = 32,319.77 × 12,809.76
  4. Step 4: Simplify right side
    23,420.13x = 414,008,496.96
  5. Step 5: Solve for x
    x = 414,008,496.96/23,420.13
  6. Step 6: Final answer
    x = 17,677.46

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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.