Home / 51,478.80-71,035.56-28,816.32

Finding the Fourth Proportional to 51,478.80, 71,035.56 and 28,816.32

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Solution

The fourth proportional to 51,478.80, 71,035.56 and 28,816.32 is: 39,763.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,478.80 : 71,035.56 = 28,816.32 : x
  2. Step 2: Convert to fraction form
    51,478.80/71,035.56 = 28,816.32/x
  3. Step 3: Cross multiply
    51,478.80x = 71,035.56 × 28,816.32
  4. Step 4: Simplify right side
    51,478.80x = 2,046,983,428.34
  5. Step 5: Solve for x
    x = 2,046,983,428.34/51,478.80
  6. Step 6: Final answer
    x = 39,763.62

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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.