Home / 38,818.28-53,562.12-21,822.86

Finding the Fourth Proportional to 38,818.28, 53,562.12 and 21,822.86

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Solution

The fourth proportional to 38,818.28, 53,562.12 and 21,822.86 is: 30,111.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,818.28 : 53,562.12 = 21,822.86 : x
  2. Step 2: Convert to fraction form
    38,818.28/53,562.12 = 21,822.86/x
  3. Step 3: Cross multiply
    38,818.28x = 53,562.12 × 21,822.86
  4. Step 4: Simplify right side
    38,818.28x = 1,168,878,646.06
  5. Step 5: Solve for x
    x = 1,168,878,646.06/38,818.28
  6. Step 6: Final answer
    x = 30,111.55

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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.