Home / 51,020.90-70,408.45-28,664.90

Finding the Fourth Proportional to 51,020.90, 70,408.45 and 28,664.90

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Solution

The fourth proportional to 51,020.90, 70,408.45 and 28,664.90 is: 39,557.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,020.90 : 70,408.45 = 28,664.90 : x
  2. Step 2: Convert to fraction form
    51,020.90/70,408.45 = 28,664.90/x
  3. Step 3: Cross multiply
    51,020.90x = 70,408.45 × 28,664.90
  4. Step 4: Simplify right side
    51,020.90x = 2,018,251,178.41
  5. Step 5: Solve for x
    x = 2,018,251,178.41/51,020.90
  6. Step 6: Final answer
    x = 39,557.34

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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.