Home / 28,330.55-42,495.66-7,270.55

Finding the Fourth Proportional to 28,330.55, 42,495.66 and 7,270.55

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Solution

The fourth proportional to 28,330.55, 42,495.66 and 7,270.55 is: 10,905.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,330.55 : 42,495.66 = 7,270.55 : x
  2. Step 2: Convert to fraction form
    28,330.55/42,495.66 = 7,270.55/x
  3. Step 3: Cross multiply
    28,330.55x = 42,495.66 × 7,270.55
  4. Step 4: Simplify right side
    28,330.55x = 308,966,820.81
  5. Step 5: Solve for x
    x = 308,966,820.81/28,330.55
  6. Step 6: Final answer
    x = 10,905.78

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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.