Home / 23,210.55-32,031.27-13,138.79

Finding the Fourth Proportional to 23,210.55, 32,031.27 and 13,138.79

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Solution

The fourth proportional to 23,210.55, 32,031.27 and 13,138.79 is: 18,131.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,210.55 : 32,031.27 = 13,138.79 : x
  2. Step 2: Convert to fraction form
    23,210.55/32,031.27 = 13,138.79/x
  3. Step 3: Cross multiply
    23,210.55x = 32,031.27 × 13,138.79
  4. Step 4: Simplify right side
    23,210.55x = 420,851,969.81
  5. Step 5: Solve for x
    x = 420,851,969.81/23,210.55
  6. Step 6: Final answer
    x = 18,131.93

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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.