Home / 30,699.14-45,970.95-18,976.82

Finding the Fourth Proportional to 30,699.14, 45,970.95 and 18,976.82

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Solution

The fourth proportional to 30,699.14, 45,970.95 and 18,976.82 is: 28,417.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,699.14 : 45,970.95 = 18,976.82 : x
  2. Step 2: Convert to fraction form
    30,699.14/45,970.95 = 18,976.82/x
  3. Step 3: Cross multiply
    30,699.14x = 45,970.95 × 18,976.82
  4. Step 4: Simplify right side
    30,699.14x = 872,382,443.38
  5. Step 5: Solve for x
    x = 872,382,443.38/30,699.14
  6. Step 6: Final answer
    x = 28,417.16

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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.