Home / 28,064.86-38,683.06-19,877.84

Finding the Fourth Proportional to 28,064.86, 38,683.06 and 19,877.84

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Solution

The fourth proportional to 28,064.86, 38,683.06 and 19,877.84 is: 27,398.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,064.86 : 38,683.06 = 19,877.84 : x
  2. Step 2: Convert to fraction form
    28,064.86/38,683.06 = 19,877.84/x
  3. Step 3: Cross multiply
    28,064.86x = 38,683.06 × 19,877.84
  4. Step 4: Simplify right side
    28,064.86x = 768,935,677.39
  5. Step 5: Solve for x
    x = 768,935,677.39/28,064.86
  6. Step 6: Final answer
    x = 27,398.52

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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.