Home / 30,363.86-41,927.02-20,916.02

Finding the Fourth Proportional to 30,363.86, 41,927.02 and 20,916.02

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Solution

The fourth proportional to 30,363.86, 41,927.02 and 20,916.02 is: 28,881.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,363.86 : 41,927.02 = 20,916.02 : x
  2. Step 2: Convert to fraction form
    30,363.86/41,927.02 = 20,916.02/x
  3. Step 3: Cross multiply
    30,363.86x = 41,927.02 × 20,916.02
  4. Step 4: Simplify right side
    30,363.86x = 876,946,388.86
  5. Step 5: Solve for x
    x = 876,946,388.86/30,363.86
  6. Step 6: Final answer
    x = 28,881.26

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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.