Home / 28,477.48-42,725.36-13,687.47

Finding the Fourth Proportional to 28,477.48, 42,725.36 and 13,687.47

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Solution

The fourth proportional to 28,477.48, 42,725.36 and 13,687.47 is: 20,535.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,477.48 : 42,725.36 = 13,687.47 : x
  2. Step 2: Convert to fraction form
    28,477.48/42,725.36 = 13,687.47/x
  3. Step 3: Cross multiply
    28,477.48x = 42,725.36 × 13,687.47
  4. Step 4: Simplify right side
    28,477.48x = 584,802,083.24
  5. Step 5: Solve for x
    x = 584,802,083.24/28,477.48
  6. Step 6: Final answer
    x = 20,535.60

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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.