Home / 20,453.81-30,703.49-10,590.44

Finding the Fourth Proportional to 20,453.81, 30,703.49 and 10,590.44

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Solution

The fourth proportional to 20,453.81, 30,703.49 and 10,590.44 is: 15,897.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,453.81 : 30,703.49 = 10,590.44 : x
  2. Step 2: Convert to fraction form
    20,453.81/30,703.49 = 10,590.44/x
  3. Step 3: Cross multiply
    20,453.81x = 30,703.49 × 10,590.44
  4. Step 4: Simplify right side
    20,453.81x = 325,163,468.64
  5. Step 5: Solve for x
    x = 325,163,468.64/20,453.81
  6. Step 6: Final answer
    x = 15,897.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.