Home / 51,621.48-71,235.12-28,957.68

Finding the Fourth Proportional to 51,621.48, 71,235.12 and 28,957.68

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Solution

The fourth proportional to 51,621.48, 71,235.12 and 28,957.68 is: 39,960.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,621.48 : 71,235.12 = 28,957.68 : x
  2. Step 2: Convert to fraction form
    51,621.48/71,235.12 = 28,957.68/x
  3. Step 3: Cross multiply
    51,621.48x = 71,235.12 × 28,957.68
  4. Step 4: Simplify right side
    51,621.48x = 2,062,803,809.72
  5. Step 5: Solve for x
    x = 2,062,803,809.72/51,621.48
  6. Step 6: Final answer
    x = 39,960.18

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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.