Home / 38,730.63-53,448.27-21,963.63

Finding the Fourth Proportional to 38,730.63, 53,448.27 and 21,963.63

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Solution

The fourth proportional to 38,730.63, 53,448.27 and 21,963.63 is: 30,309.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,730.63 : 53,448.27 = 21,963.63 : x
  2. Step 2: Convert to fraction form
    38,730.63/53,448.27 = 21,963.63/x
  3. Step 3: Cross multiply
    38,730.63x = 53,448.27 × 21,963.63
  4. Step 4: Simplify right side
    38,730.63x = 1,173,918,026.42
  5. Step 5: Solve for x
    x = 1,173,918,026.42/38,730.63
  6. Step 6: Final answer
    x = 30,309.81

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1.5x scale

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.