Home / 23,500.40-32,430.60-12,890.07

Finding the Fourth Proportional to 23,500.40, 32,430.60 and 12,890.07

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Solution

The fourth proportional to 23,500.40, 32,430.60 and 12,890.07 is: 17,788.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,500.40 : 32,430.60 = 12,890.07 : x
  2. Step 2: Convert to fraction form
    23,500.40/32,430.60 = 12,890.07/x
  3. Step 3: Cross multiply
    23,500.40x = 32,430.60 × 12,890.07
  4. Step 4: Simplify right side
    23,500.40x = 418,032,704.14
  5. Step 5: Solve for x
    x = 418,032,704.14/23,500.40
  6. Step 6: Final answer
    x = 17,788.33

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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.