Home / 39,678.39-59,527.59-18,320.79

Finding the Fourth Proportional to 39,678.39, 59,527.59 and 18,320.79

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Solution

The fourth proportional to 39,678.39, 59,527.59 and 18,320.79 is: 27,485.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,678.39 : 59,527.59 = 18,320.79 : x
  2. Step 2: Convert to fraction form
    39,678.39/59,527.59 = 18,320.79/x
  3. Step 3: Cross multiply
    39,678.39x = 59,527.59 × 18,320.79
  4. Step 4: Simplify right side
    39,678.39x = 1,090,592,475.60
  5. Step 5: Solve for x
    x = 1,090,592,475.60/39,678.39
  6. Step 6: Final answer
    x = 27,485.80

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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.