Home / 39,878.64-59,807.04-11,790.30

Finding the Fourth Proportional to 39,878.64, 59,807.04 and 11,790.30

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Solution

The fourth proportional to 39,878.64, 59,807.04 and 11,790.30 is: 17,682.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,878.64 : 59,807.04 = 11,790.30 : x
  2. Step 2: Convert to fraction form
    39,878.64/59,807.04 = 11,790.30/x
  3. Step 3: Cross multiply
    39,878.64x = 59,807.04 × 11,790.30
  4. Step 4: Simplify right side
    39,878.64x = 705,142,943.71
  5. Step 5: Solve for x
    x = 705,142,943.71/39,878.64
  6. Step 6: Final answer
    x = 17,682.22

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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.