Home / 28,347.36-39,111.24-18,281.58

Finding the Fourth Proportional to 28,347.36, 39,111.24 and 18,281.58

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Solution

The fourth proportional to 28,347.36, 39,111.24 and 18,281.58 is: 25,223.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,347.36 : 39,111.24 = 18,281.58 : x
  2. Step 2: Convert to fraction form
    28,347.36/39,111.24 = 18,281.58/x
  3. Step 3: Cross multiply
    28,347.36x = 39,111.24 × 18,281.58
  4. Step 4: Simplify right side
    28,347.36x = 715,015,262.96
  5. Step 5: Solve for x
    x = 715,015,262.96/28,347.36
  6. Step 6: Final answer
    x = 25,223.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.