Home / 23,007.39-31,684.47-20,719.24

Finding the Fourth Proportional to 23,007.39, 31,684.47 and 20,719.24

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Solution

The fourth proportional to 23,007.39, 31,684.47 and 20,719.24 is: 28,533.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,007.39 : 31,684.47 = 20,719.24 : x
  2. Step 2: Convert to fraction form
    23,007.39/31,684.47 = 20,719.24/x
  3. Step 3: Cross multiply
    23,007.39x = 31,684.47 × 20,719.24
  4. Step 4: Simplify right side
    23,007.39x = 656,478,159.52
  5. Step 5: Solve for x
    x = 656,478,159.52/23,007.39
  6. Step 6: Final answer
    x = 28,533.36

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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.