Home / 39,656.64-59,421.72-20,935.92

Finding the Fourth Proportional to 39,656.64, 59,421.72 and 20,935.92

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Solution

The fourth proportional to 39,656.64, 59,421.72 and 20,935.92 is: 31,370.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,656.64 : 59,421.72 = 20,935.92 : x
  2. Step 2: Convert to fraction form
    39,656.64/59,421.72 = 20,935.92/x
  3. Step 3: Cross multiply
    39,656.64x = 59,421.72 × 20,935.92
  4. Step 4: Simplify right side
    39,656.64x = 1,244,048,376.18
  5. Step 5: Solve for x
    x = 1,244,048,376.18/39,656.64
  6. Step 6: Final answer
    x = 31,370.49

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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.