Home / 23,137.36-31,929.48-12,527.20

Finding the Fourth Proportional to 23,137.36, 31,929.48 and 12,527.20

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Solution

The fourth proportional to 23,137.36, 31,929.48 and 12,527.20 is: 17,287.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,137.36 : 31,929.48 = 12,527.20 : x
  2. Step 2: Convert to fraction form
    23,137.36/31,929.48 = 12,527.20/x
  3. Step 3: Cross multiply
    23,137.36x = 31,929.48 × 12,527.20
  4. Step 4: Simplify right side
    23,137.36x = 399,986,981.86
  5. Step 5: Solve for x
    x = 399,986,981.86/23,137.36
  6. Step 6: Final answer
    x = 17,287.49

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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.