Home / 39,291.85-54,271.47-28,519.53

Finding the Fourth Proportional to 39,291.85, 54,271.47 and 28,519.53

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Solution

The fourth proportional to 39,291.85, 54,271.47 and 28,519.53 is: 39,392.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,291.85 : 54,271.47 = 28,519.53 : x
  2. Step 2: Convert to fraction form
    39,291.85/54,271.47 = 28,519.53/x
  3. Step 3: Cross multiply
    39,291.85x = 54,271.47 × 28,519.53
  4. Step 4: Simplify right side
    39,291.85x = 1,547,796,816.81
  5. Step 5: Solve for x
    x = 1,547,796,816.81/39,291.85
  6. Step 6: Final answer
    x = 39,392.31

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.