Home / 20,854.01-31,280.87-5,271.63

Finding the Fourth Proportional to 20,854.01, 31,280.87 and 5,271.63

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Solution

The fourth proportional to 20,854.01, 31,280.87 and 5,271.63 is: 7,907.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,854.01 : 31,280.87 = 5,271.63 : x
  2. Step 2: Convert to fraction form
    20,854.01/31,280.87 = 5,271.63/x
  3. Step 3: Cross multiply
    20,854.01x = 31,280.87 × 5,271.63
  4. Step 4: Simplify right side
    20,854.01x = 164,901,146.36
  5. Step 5: Solve for x
    x = 164,901,146.36/20,854.01
  6. Step 6: Final answer
    x = 7,907.41

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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.