Home / 23,421.24-32,320.35-12,811.32

Finding the Fourth Proportional to 23,421.24, 32,320.35 and 12,811.32

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Solution

The fourth proportional to 23,421.24, 32,320.35 and 12,811.32 is: 17,679.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,421.24 : 32,320.35 = 12,811.32 : x
  2. Step 2: Convert to fraction form
    23,421.24/32,320.35 = 12,811.32/x
  3. Step 3: Cross multiply
    23,421.24x = 32,320.35 × 12,811.32
  4. Step 4: Simplify right side
    23,421.24x = 414,066,346.36
  5. Step 5: Solve for x
    x = 414,066,346.36/23,421.24
  6. Step 6: Final answer
    x = 17,679.10

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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.