Home / 20,345.94-30,383.16-15,913.62

Finding the Fourth Proportional to 20,345.94, 30,383.16 and 15,913.62

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Solution

The fourth proportional to 20,345.94, 30,383.16 and 15,913.62 is: 23,764.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,345.94 : 30,383.16 = 15,913.62 : x
  2. Step 2: Convert to fraction form
    20,345.94/30,383.16 = 15,913.62/x
  3. Step 3: Cross multiply
    20,345.94x = 30,383.16 × 15,913.62
  4. Step 4: Simplify right side
    20,345.94x = 483,506,062.64
  5. Step 5: Solve for x
    x = 483,506,062.64/20,345.94
  6. Step 6: Final answer
    x = 23,764.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.