Home / 30,701.50-42,389.02-22,636.13

Finding the Fourth Proportional to 30,701.50, 42,389.02 and 22,636.13

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Solution

The fourth proportional to 30,701.50, 42,389.02 and 22,636.13 is: 31,253.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,701.50 : 42,389.02 = 22,636.13 : x
  2. Step 2: Convert to fraction form
    30,701.50/42,389.02 = 22,636.13/x
  3. Step 3: Cross multiply
    30,701.50x = 42,389.02 × 22,636.13
  4. Step 4: Simplify right side
    30,701.50x = 959,523,183.64
  5. Step 5: Solve for x
    x = 959,523,183.64/30,701.50
  6. Step 6: Final answer
    x = 31,253.30

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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.