Home / 38,876.25-53,653.95-21,886.86

Finding the Fourth Proportional to 38,876.25, 53,653.95 and 21,886.86

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Solution

The fourth proportional to 38,876.25, 53,653.95 and 21,886.86 is: 30,206.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,876.25 : 53,653.95 = 21,886.86 : x
  2. Step 2: Convert to fraction form
    38,876.25/53,653.95 = 21,886.86/x
  3. Step 3: Cross multiply
    38,876.25x = 53,653.95 × 21,886.86
  4. Step 4: Simplify right side
    38,876.25x = 1,174,316,492.10
  5. Step 5: Solve for x
    x = 1,174,316,492.10/38,876.25
  6. Step 6: Final answer
    x = 30,206.53

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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.