Home / 30,569.15-42,167.51-19,220.66

Finding the Fourth Proportional to 30,569.15, 42,167.51 and 19,220.66

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Solution

The fourth proportional to 30,569.15, 42,167.51 and 19,220.66 is: 26,513.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,569.15 : 42,167.51 = 19,220.66 : x
  2. Step 2: Convert to fraction form
    30,569.15/42,167.51 = 19,220.66/x
  3. Step 3: Cross multiply
    30,569.15x = 42,167.51 × 19,220.66
  4. Step 4: Simplify right side
    30,569.15x = 810,487,526.23
  5. Step 5: Solve for x
    x = 810,487,526.23/30,569.15
  6. Step 6: Final answer
    x = 26,513.25

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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.