Home / 35,490.83-48,975.71-20,372.85

Finding the Fourth Proportional to 35,490.83, 48,975.71 and 20,372.85

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Solution

The fourth proportional to 35,490.83, 48,975.71 and 20,372.85 is: 28,113.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,490.83 : 48,975.71 = 20,372.85 : x
  2. Step 2: Convert to fraction form
    35,490.83/48,975.71 = 20,372.85/x
  3. Step 3: Cross multiply
    35,490.83x = 48,975.71 × 20,372.85
  4. Step 4: Simplify right side
    35,490.83x = 997,774,691.61
  5. Step 5: Solve for x
    x = 997,774,691.61/35,490.83
  6. Step 6: Final answer
    x = 28,113.60

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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.