Home / 21,035.46-31,457.24-15,702.42

Finding the Fourth Proportional to 21,035.46, 31,457.24 and 15,702.42

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Solution

The fourth proportional to 21,035.46, 31,457.24 and 15,702.42 is: 23,482.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,035.46 : 31,457.24 = 15,702.42 : x
  2. Step 2: Convert to fraction form
    21,035.46/31,457.24 = 15,702.42/x
  3. Step 3: Cross multiply
    21,035.46x = 31,457.24 × 15,702.42
  4. Step 4: Simplify right side
    21,035.46x = 493,954,716.01
  5. Step 5: Solve for x
    x = 493,954,716.01/21,035.46
  6. Step 6: Final answer
    x = 23,482.00

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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.