Home / 38,547.74-53,195.19-21,780.38

Finding the Fourth Proportional to 38,547.74, 53,195.19 and 21,780.38

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Solution

The fourth proportional to 38,547.74, 53,195.19 and 21,780.38 is: 30,056.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,547.74 : 53,195.19 = 21,780.38 : x
  2. Step 2: Convert to fraction form
    38,547.74/53,195.19 = 21,780.38/x
  3. Step 3: Cross multiply
    38,547.74x = 53,195.19 × 21,780.38
  4. Step 4: Simplify right side
    38,547.74x = 1,158,611,452.37
  5. Step 5: Solve for x
    x = 1,158,611,452.37/38,547.74
  6. Step 6: Final answer
    x = 30,056.53

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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.