Home / 28,331.74-42,506.85-13,541.81

Finding the Fourth Proportional to 28,331.74, 42,506.85 and 13,541.81

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Solution

The fourth proportional to 28,331.74, 42,506.85 and 13,541.81 is: 20,317.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,331.74 : 42,506.85 = 13,541.81 : x
  2. Step 2: Convert to fraction form
    28,331.74/42,506.85 = 13,541.81/x
  3. Step 3: Cross multiply
    28,331.74x = 42,506.85 × 13,541.81
  4. Step 4: Simplify right side
    28,331.74x = 575,619,440.01
  5. Step 5: Solve for x
    x = 575,619,440.01/28,331.74
  6. Step 6: Final answer
    x = 20,317.13

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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.