Home / 28,331.48-42,506.47-13,541.55

Finding the Fourth Proportional to 28,331.48, 42,506.47 and 13,541.55

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Solution

The fourth proportional to 28,331.48, 42,506.47 and 13,541.55 is: 20,316.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,331.48 : 42,506.47 = 13,541.55 : x
  2. Step 2: Convert to fraction form
    28,331.48/42,506.47 = 13,541.55/x
  3. Step 3: Cross multiply
    28,331.48x = 42,506.47 × 13,541.55
  4. Step 4: Simplify right side
    28,331.48x = 575,603,705.00
  5. Step 5: Solve for x
    x = 575,603,705.00/28,331.48
  6. Step 6: Final answer
    x = 20,316.75

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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.