Home / 43,190.50-64,681.26-20,948.80

Finding the Fourth Proportional to 43,190.50, 64,681.26 and 20,948.80

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Solution

The fourth proportional to 43,190.50, 64,681.26 and 20,948.80 is: 31,372.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,190.50 : 64,681.26 = 20,948.80 : x
  2. Step 2: Convert to fraction form
    43,190.50/64,681.26 = 20,948.80/x
  3. Step 3: Cross multiply
    43,190.50x = 64,681.26 × 20,948.80
  4. Step 4: Simplify right side
    43,190.50x = 1,354,994,779.49
  5. Step 5: Solve for x
    x = 1,354,994,779.49/43,190.50
  6. Step 6: Final answer
    x = 31,372.52

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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.