Home / 28,239.06-42,361.86-9,512.67

Finding the Fourth Proportional to 28,239.06, 42,361.86 and 9,512.67

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Solution

The fourth proportional to 28,239.06, 42,361.86 and 9,512.67 is: 14,270.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,239.06 : 42,361.86 = 9,512.67 : x
  2. Step 2: Convert to fraction form
    28,239.06/42,361.86 = 9,512.67/x
  3. Step 3: Cross multiply
    28,239.06x = 42,361.86 × 9,512.67
  4. Step 4: Simplify right side
    28,239.06x = 402,974,394.77
  5. Step 5: Solve for x
    x = 402,974,394.77/28,239.06
  6. Step 6: Final answer
    x = 14,270.11

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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.