Home / 30,569.03-42,167.34-19,220.54

Finding the Fourth Proportional to 30,569.03, 42,167.34 and 19,220.54

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Solution

The fourth proportional to 30,569.03, 42,167.34 and 19,220.54 is: 26,513.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,569.03 : 42,167.34 = 19,220.54 : x
  2. Step 2: Convert to fraction form
    30,569.03/42,167.34 = 19,220.54/x
  3. Step 3: Cross multiply
    30,569.03x = 42,167.34 × 19,220.54
  4. Step 4: Simplify right side
    30,569.03x = 810,478,987.80
  5. Step 5: Solve for x
    x = 810,478,987.80/30,569.03
  6. Step 6: Final answer
    x = 26,513.08

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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.