Home / 30,605.04-42,228.54-20,010.24

Finding the Fourth Proportional to 30,605.04, 42,228.54 and 20,010.24

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Solution

The fourth proportional to 30,605.04, 42,228.54 and 20,010.24 is: 27,609.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,605.04 : 42,228.54 = 20,010.24 : x
  2. Step 2: Convert to fraction form
    30,605.04/42,228.54 = 20,010.24/x
  3. Step 3: Cross multiply
    30,605.04x = 42,228.54 × 20,010.24
  4. Step 4: Simplify right side
    30,605.04x = 845,003,220.25
  5. Step 5: Solve for x
    x = 845,003,220.25/30,605.04
  6. Step 6: Final answer
    x = 27,609.94

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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.