Home / 39,708.78-59,570.47-13,056.28

Finding the Fourth Proportional to 39,708.78, 59,570.47 and 13,056.28

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Solution

The fourth proportional to 39,708.78, 59,570.47 and 13,056.28 is: 19,586.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,708.78 : 59,570.47 = 13,056.28 : x
  2. Step 2: Convert to fraction form
    39,708.78/59,570.47 = 13,056.28/x
  3. Step 3: Cross multiply
    39,708.78x = 59,570.47 × 13,056.28
  4. Step 4: Simplify right side
    39,708.78x = 777,768,603.45
  5. Step 5: Solve for x
    x = 777,768,603.45/39,708.78
  6. Step 6: Final answer
    x = 19,586.82

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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.