Home / 39,214.80-58,828.28-12,911.27

Finding the Fourth Proportional to 39,214.80, 58,828.28 and 12,911.27

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Solution

The fourth proportional to 39,214.80, 58,828.28 and 12,911.27 is: 19,368.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,214.80 : 58,828.28 = 12,911.27 : x
  2. Step 2: Convert to fraction form
    39,214.80/58,828.28 = 12,911.27/x
  3. Step 3: Cross multiply
    39,214.80x = 58,828.28 × 12,911.27
  4. Step 4: Simplify right side
    39,214.80x = 759,547,448.02
  5. Step 5: Solve for x
    x = 759,547,448.02/39,214.80
  6. Step 6: Final answer
    x = 19,368.90

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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.