Home / 40,728.02-61,125.03-21,012.21

Finding the Fourth Proportional to 40,728.02, 61,125.03 and 21,012.21

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Solution

The fourth proportional to 40,728.02, 61,125.03 and 21,012.21 is: 31,535.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,728.02 : 61,125.03 = 21,012.21 : x
  2. Step 2: Convert to fraction form
    40,728.02/61,125.03 = 21,012.21/x
  3. Step 3: Cross multiply
    40,728.02x = 61,125.03 × 21,012.21
  4. Step 4: Simplify right side
    40,728.02x = 1,284,371,966.62
  5. Step 5: Solve for x
    x = 1,284,371,966.62/40,728.02
  6. Step 6: Final answer
    x = 31,535.34

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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.