Home / 35,490.10-48,951.78-28,776.01

Finding the Fourth Proportional to 35,490.10, 48,951.78 and 28,776.01

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Solution

The fourth proportional to 35,490.10, 48,951.78 and 28,776.01 is: 39,690.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,490.10 : 48,951.78 = 28,776.01 : x
  2. Step 2: Convert to fraction form
    35,490.10/48,951.78 = 28,776.01/x
  3. Step 3: Cross multiply
    35,490.10x = 48,951.78 × 28,776.01
  4. Step 4: Simplify right side
    35,490.10x = 1,408,636,910.80
  5. Step 5: Solve for x
    x = 1,408,636,910.80/35,490.10
  6. Step 6: Final answer
    x = 39,690.98

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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.