Home / 28,361.34-42,510.78-11,712.33

Finding the Fourth Proportional to 28,361.34, 42,510.78 and 11,712.33

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Solution

The fourth proportional to 28,361.34, 42,510.78 and 11,712.33 is: 17,555.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,361.34 : 42,510.78 = 11,712.33 : x
  2. Step 2: Convert to fraction form
    28,361.34/42,510.78 = 11,712.33/x
  3. Step 3: Cross multiply
    28,361.34x = 42,510.78 × 11,712.33
  4. Step 4: Simplify right side
    28,361.34x = 497,900,283.92
  5. Step 5: Solve for x
    x = 497,900,283.92/28,361.34
  6. Step 6: Final answer
    x = 17,555.60

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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.