Home / 35,431.98-53,014.89-21,690.30

Finding the Fourth Proportional to 35,431.98, 53,014.89 and 21,690.30

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Solution

The fourth proportional to 35,431.98, 53,014.89 and 21,690.30 is: 32,453.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,431.98 : 53,014.89 = 21,690.30 : x
  2. Step 2: Convert to fraction form
    35,431.98/53,014.89 = 21,690.30/x
  3. Step 3: Cross multiply
    35,431.98x = 53,014.89 × 21,690.30
  4. Step 4: Simplify right side
    35,431.98x = 1,149,908,868.57
  5. Step 5: Solve for x
    x = 1,149,908,868.57/35,431.98
  6. Step 6: Final answer
    x = 32,453.98

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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.