Home / 39,710.52-54,742.64-28,359.99

Finding the Fourth Proportional to 39,710.52, 54,742.64 and 28,359.99

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Solution

The fourth proportional to 39,710.52, 54,742.64 and 28,359.99 is: 39,095.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,710.52 : 54,742.64 = 28,359.99 : x
  2. Step 2: Convert to fraction form
    39,710.52/54,742.64 = 28,359.99/x
  3. Step 3: Cross multiply
    39,710.52x = 54,742.64 × 28,359.99
  4. Step 4: Simplify right side
    39,710.52x = 1,552,500,581.17
  5. Step 5: Solve for x
    x = 1,552,500,581.17/39,710.52
  6. Step 6: Final answer
    x = 39,095.45

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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.