Home / 30,720.40-46,015.80-27,437.20

Finding the Fourth Proportional to 30,720.40, 46,015.80 and 27,437.20

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Solution

The fourth proportional to 30,720.40, 46,015.80 and 27,437.20 is: 41,097.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,720.40 : 46,015.80 = 27,437.20 : x
  2. Step 2: Convert to fraction form
    30,720.40/46,015.80 = 27,437.20/x
  3. Step 3: Cross multiply
    30,720.40x = 46,015.80 × 27,437.20
  4. Step 4: Simplify right side
    30,720.40x = 1,262,544,707.76
  5. Step 5: Solve for x
    x = 1,262,544,707.76/30,720.40
  6. Step 6: Final answer
    x = 41,097.93

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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.