Home / 21,299.02-31,948.56-21,268.26

Finding the Fourth Proportional to 21,299.02, 31,948.56 and 21,268.26

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Solution

The fourth proportional to 21,299.02, 31,948.56 and 21,268.26 is: 31,902.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,299.02 : 31,948.56 = 21,268.26 : x
  2. Step 2: Convert to fraction form
    21,299.02/31,948.56 = 21,268.26/x
  3. Step 3: Cross multiply
    21,299.02x = 31,948.56 × 21,268.26
  4. Step 4: Simplify right side
    21,299.02x = 679,490,280.71
  5. Step 5: Solve for x
    x = 679,490,280.71/21,299.02
  6. Step 6: Final answer
    x = 31,902.42

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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.