Home / 28,473.48-42,719.36-13,683.47

Finding the Fourth Proportional to 28,473.48, 42,719.36 and 13,683.47

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Solution

The fourth proportional to 28,473.48, 42,719.36 and 13,683.47 is: 20,529.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,473.48 : 42,719.36 = 13,683.47 : x
  2. Step 2: Convert to fraction form
    28,473.48/42,719.36 = 13,683.47/x
  3. Step 3: Cross multiply
    28,473.48x = 42,719.36 × 13,683.47
  4. Step 4: Simplify right side
    28,473.48x = 584,548,798.97
  5. Step 5: Solve for x
    x = 584,548,798.97/28,473.48
  6. Step 6: Final answer
    x = 20,529.59

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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.