Home / 47,611.90-65,699.61-28,487.80

Finding the Fourth Proportional to 47,611.90, 65,699.61 and 28,487.80

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Solution

The fourth proportional to 47,611.90, 65,699.61 and 28,487.80 is: 39,310.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,611.90 : 65,699.61 = 28,487.80 : x
  2. Step 2: Convert to fraction form
    47,611.90/65,699.61 = 28,487.80/x
  3. Step 3: Cross multiply
    47,611.90x = 65,699.61 × 28,487.80
  4. Step 4: Simplify right side
    47,611.90x = 1,871,637,325.05
  5. Step 5: Solve for x
    x = 1,871,637,325.05/47,611.90
  6. Step 6: Final answer
    x = 39,310.28

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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.