Home / 28,024.84-38,690.12-18,606.28

Finding the Fourth Proportional to 28,024.84, 38,690.12 and 18,606.28

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Solution

The fourth proportional to 28,024.84, 38,690.12 and 18,606.28 is: 25,687.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,024.84 : 38,690.12 = 18,606.28 : x
  2. Step 2: Convert to fraction form
    28,024.84/38,690.12 = 18,606.28/x
  3. Step 3: Cross multiply
    28,024.84x = 38,690.12 × 18,606.28
  4. Step 4: Simplify right side
    28,024.84x = 719,879,205.95
  5. Step 5: Solve for x
    x = 719,879,205.95/28,024.84
  6. Step 6: Final answer
    x = 25,687.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.