Home / 28,541.09-42,810.35-7,480.67

Finding the Fourth Proportional to 28,541.09, 42,810.35 and 7,480.67

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Solution

The fourth proportional to 28,541.09, 42,810.35 and 7,480.67 is: 11,220.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,541.09 : 42,810.35 = 7,480.67 : x
  2. Step 2: Convert to fraction form
    28,541.09/42,810.35 = 7,480.67/x
  3. Step 3: Cross multiply
    28,541.09x = 42,810.35 × 7,480.67
  4. Step 4: Simplify right side
    28,541.09x = 320,249,905.58
  5. Step 5: Solve for x
    x = 320,249,905.58/28,541.09
  6. Step 6: Final answer
    x = 11,220.66

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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.