Home / 28,634.02-42,912.15-21,266.26

Finding the Fourth Proportional to 28,634.02, 42,912.15 and 21,266.26

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Solution

The fourth proportional to 28,634.02, 42,912.15 and 21,266.26 is: 31,870.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,634.02 : 42,912.15 = 21,266.26 : x
  2. Step 2: Convert to fraction form
    28,634.02/42,912.15 = 21,266.26/x
  3. Step 3: Cross multiply
    28,634.02x = 42,912.15 × 21,266.26
  4. Step 4: Simplify right side
    28,634.02x = 912,580,939.06
  5. Step 5: Solve for x
    x = 912,580,939.06/28,634.02
  6. Step 6: Final answer
    x = 31,870.51

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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.