Home / 39,678.42-59,518.86-19,957.77

Finding the Fourth Proportional to 39,678.42, 59,518.86 and 19,957.77

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Solution

The fourth proportional to 39,678.42, 59,518.86 and 19,957.77 is: 29,937.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,678.42 : 59,518.86 = 19,957.77 : x
  2. Step 2: Convert to fraction form
    39,678.42/59,518.86 = 19,957.77/x
  3. Step 3: Cross multiply
    39,678.42x = 59,518.86 × 19,957.77
  4. Step 4: Simplify right side
    39,678.42x = 1,187,863,718.54
  5. Step 5: Solve for x
    x = 1,187,863,718.54/39,678.42
  6. Step 6: Final answer
    x = 29,937.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.