Home / 38,877.66-53,656.35-21,885.24

Finding the Fourth Proportional to 38,877.66, 53,656.35 and 21,885.24

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Solution

The fourth proportional to 38,877.66, 53,656.35 and 21,885.24 is: 30,204.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,877.66 : 53,656.35 = 21,885.24 : x
  2. Step 2: Convert to fraction form
    38,877.66/53,656.35 = 21,885.24/x
  3. Step 3: Cross multiply
    38,877.66x = 53,656.35 × 21,885.24
  4. Step 4: Simplify right side
    38,877.66x = 1,174,282,097.27
  5. Step 5: Solve for x
    x = 1,174,282,097.27/38,877.66
  6. Step 6: Final answer
    x = 30,204.55

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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.