Home / 28,342.67-42,495.78-13,551.26

Finding the Fourth Proportional to 28,342.67, 42,495.78 and 13,551.26

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Solution

The fourth proportional to 28,342.67, 42,495.78 and 13,551.26 is: 20,318.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,342.67 : 42,495.78 = 13,551.26 : x
  2. Step 2: Convert to fraction form
    28,342.67/42,495.78 = 13,551.26/x
  3. Step 3: Cross multiply
    28,342.67x = 42,495.78 × 13,551.26
  4. Step 4: Simplify right side
    28,342.67x = 575,871,363.68
  5. Step 5: Solve for x
    x = 575,871,363.68/28,342.67
  6. Step 6: Final answer
    x = 20,318.18

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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.