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Finding the Fourth Proportional to 35,300.88, 48,711.12 and 20,955.60

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Solution

The fourth proportional to 35,300.88, 48,711.12 and 20,955.60 is: 28,916.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,300.88 : 48,711.12 = 20,955.60 : x
  2. Step 2: Convert to fraction form
    35,300.88/48,711.12 = 20,955.60/x
  3. Step 3: Cross multiply
    35,300.88x = 48,711.12 × 20,955.60
  4. Step 4: Simplify right side
    35,300.88x = 1,020,770,746.27
  5. Step 5: Solve for x
    x = 1,020,770,746.27/35,300.88
  6. Step 6: Final answer
    x = 28,916.30

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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.