Home / 30,822.69-42,539.36-22,887.57

Finding the Fourth Proportional to 30,822.69, 42,539.36 and 22,887.57

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Solution

The fourth proportional to 30,822.69, 42,539.36 and 22,887.57 is: 31,587.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,822.69 : 42,539.36 = 22,887.57 : x
  2. Step 2: Convert to fraction form
    30,822.69/42,539.36 = 22,887.57/x
  3. Step 3: Cross multiply
    30,822.69x = 42,539.36 × 22,887.57
  4. Step 4: Simplify right side
    30,822.69x = 973,622,465.32
  5. Step 5: Solve for x
    x = 973,622,465.32/30,822.69
  6. Step 6: Final answer
    x = 31,587.85

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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.