Home / 23,210.21-32,030.86-13,138.44

Finding the Fourth Proportional to 23,210.21, 32,030.86 and 13,138.44

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Solution

The fourth proportional to 23,210.21, 32,030.86 and 13,138.44 is: 18,131.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,210.21 : 32,030.86 = 13,138.44 : x
  2. Step 2: Convert to fraction form
    23,210.21/32,030.86 = 13,138.44/x
  3. Step 3: Cross multiply
    23,210.21x = 32,030.86 × 13,138.44
  4. Step 4: Simplify right side
    23,210.21x = 420,835,483.63
  5. Step 5: Solve for x
    x = 420,835,483.63/23,210.21
  6. Step 6: Final answer
    x = 18,131.48

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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.