Home / 20,089.89-30,117.02-7,601.18

Finding the Fourth Proportional to 20,089.89, 30,117.02 and 7,601.18

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Solution

The fourth proportional to 20,089.89, 30,117.02 and 7,601.18 is: 11,395.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,089.89 : 30,117.02 = 7,601.18 : x
  2. Step 2: Convert to fraction form
    20,089.89/30,117.02 = 7,601.18/x
  3. Step 3: Cross multiply
    20,089.89x = 30,117.02 × 7,601.18
  4. Step 4: Simplify right side
    20,089.89x = 228,924,701.49
  5. Step 5: Solve for x
    x = 228,924,701.49/20,089.89
  6. Step 6: Final answer
    x = 11,395.02

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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.