Home / 30,759.06-42,447.65-17,330.53

Finding the Fourth Proportional to 30,759.06, 42,447.65 and 17,330.53

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Solution

The fourth proportional to 30,759.06, 42,447.65 and 17,330.53 is: 23,916.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,759.06 : 42,447.65 = 17,330.53 : x
  2. Step 2: Convert to fraction form
    30,759.06/42,447.65 = 17,330.53/x
  3. Step 3: Cross multiply
    30,759.06x = 42,447.65 × 17,330.53
  4. Step 4: Simplify right side
    30,759.06x = 735,640,271.75
  5. Step 5: Solve for x
    x = 735,640,271.75/30,759.06
  6. Step 6: Final answer
    x = 23,916.21

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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.