Home / 48,490.16-72,735.08-13,429.71

Finding the Fourth Proportional to 48,490.16, 72,735.08 and 13,429.71

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Solution

The fourth proportional to 48,490.16, 72,735.08 and 13,429.71 is: 20,144.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,490.16 : 72,735.08 = 13,429.71 : x
  2. Step 2: Convert to fraction form
    48,490.16/72,735.08 = 13,429.71/x
  3. Step 3: Cross multiply
    48,490.16x = 72,735.08 × 13,429.71
  4. Step 4: Simplify right side
    48,490.16x = 976,810,964.08
  5. Step 5: Solve for x
    x = 976,810,964.08/48,490.16
  6. Step 6: Final answer
    x = 20,144.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.