Home / 38,613.61-53,274.39-21,615.35

Finding the Fourth Proportional to 38,613.61, 53,274.39 and 21,615.35

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Solution

The fourth proportional to 38,613.61, 53,274.39 and 21,615.35 is: 29,822.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,613.61 : 53,274.39 = 21,615.35 : x
  2. Step 2: Convert to fraction form
    38,613.61/53,274.39 = 21,615.35/x
  3. Step 3: Cross multiply
    38,613.61x = 53,274.39 × 21,615.35
  4. Step 4: Simplify right side
    38,613.61x = 1,151,544,585.89
  5. Step 5: Solve for x
    x = 1,151,544,585.89/38,613.61
  6. Step 6: Final answer
    x = 29,822.25

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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.