Home / 28,948.86-39,922.70-18,872.28

Finding the Fourth Proportional to 28,948.86, 39,922.70 and 18,872.28

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Solution

The fourth proportional to 28,948.86, 39,922.70 and 18,872.28 is: 26,026.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,948.86 : 39,922.70 = 18,872.28 : x
  2. Step 2: Convert to fraction form
    28,948.86/39,922.70 = 18,872.28/x
  3. Step 3: Cross multiply
    28,948.86x = 39,922.70 × 18,872.28
  4. Step 4: Simplify right side
    28,948.86x = 753,432,278.39
  5. Step 5: Solve for x
    x = 753,432,278.39/28,948.86
  6. Step 6: Final answer
    x = 26,026.32

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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.