Home / 31,977.07-47,965.57-8,603.50

Finding the Fourth Proportional to 31,977.07, 47,965.57 and 8,603.50

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Solution

The fourth proportional to 31,977.07, 47,965.57 and 8,603.50 is: 12,905.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,977.07 : 47,965.57 = 8,603.50 : x
  2. Step 2: Convert to fraction form
    31,977.07/47,965.57 = 8,603.50/x
  3. Step 3: Cross multiply
    31,977.07x = 47,965.57 × 8,603.50
  4. Step 4: Simplify right side
    31,977.07x = 412,671,781.50
  5. Step 5: Solve for x
    x = 412,671,781.50/31,977.07
  6. Step 6: Final answer
    x = 12,905.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.