Home / 30,490.14-45,963.72-28,458.06

Finding the Fourth Proportional to 30,490.14, 45,963.72 and 28,458.06

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Solution

The fourth proportional to 30,490.14, 45,963.72 and 28,458.06 is: 42,900.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,490.14 : 45,963.72 = 28,458.06 : x
  2. Step 2: Convert to fraction form
    30,490.14/45,963.72 = 28,458.06/x
  3. Step 3: Cross multiply
    30,490.14x = 45,963.72 × 28,458.06
  4. Step 4: Simplify right side
    30,490.14x = 1,308,038,301.58
  5. Step 5: Solve for x
    x = 1,308,038,301.58/30,490.14
  6. Step 6: Final answer
    x = 42,900.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.