Home / 39,998.19-59,957.49-18,900.90

Finding the Fourth Proportional to 39,998.19, 59,957.49 and 18,900.90

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Solution

The fourth proportional to 39,998.19, 59,957.49 and 18,900.90 is: 28,332.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,998.19 : 59,957.49 = 18,900.90 : x
  2. Step 2: Convert to fraction form
    39,998.19/59,957.49 = 18,900.90/x
  3. Step 3: Cross multiply
    39,998.19x = 59,957.49 × 18,900.90
  4. Step 4: Simplify right side
    39,998.19x = 1,133,250,522.74
  5. Step 5: Solve for x
    x = 1,133,250,522.74/39,998.19
  6. Step 6: Final answer
    x = 28,332.55

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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.