Home / 16,915.90-25,337.40-13,999.90

Finding the Fourth Proportional to 16,915.90, 25,337.40 and 13,999.90

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Solution

The fourth proportional to 16,915.90, 25,337.40 and 13,999.90 is: 20,969.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,915.90 : 25,337.40 = 13,999.90 : x
  2. Step 2: Convert to fraction form
    16,915.90/25,337.40 = 13,999.90/x
  3. Step 3: Cross multiply
    16,915.90x = 25,337.40 × 13,999.90
  4. Step 4: Simplify right side
    16,915.90x = 354,721,066.26
  5. Step 5: Solve for x
    x = 354,721,066.26/16,915.90
  6. Step 6: Final answer
    x = 20,969.68

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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.