Home / 21,052.44-31,577.31-7,903.68

Finding the Fourth Proportional to 21,052.44, 31,577.31 and 7,903.68

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Solution

The fourth proportional to 21,052.44, 31,577.31 and 7,903.68 is: 11,855.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,052.44 : 31,577.31 = 7,903.68 : x
  2. Step 2: Convert to fraction form
    21,052.44/31,577.31 = 7,903.68/x
  3. Step 3: Cross multiply
    21,052.44x = 31,577.31 × 7,903.68
  4. Step 4: Simplify right side
    21,052.44x = 249,576,953.50
  5. Step 5: Solve for x
    x = 249,576,953.50/21,052.44
  6. Step 6: Final answer
    x = 11,855.01

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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.