Home / 30,145.09-41,602.71-16,720.68

Finding the Fourth Proportional to 30,145.09, 41,602.71 and 16,720.68

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Solution

The fourth proportional to 30,145.09, 41,602.71 and 16,720.68 is: 23,075.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,145.09 : 41,602.71 = 16,720.68 : x
  2. Step 2: Convert to fraction form
    30,145.09/41,602.71 = 16,720.68/x
  3. Step 3: Cross multiply
    30,145.09x = 41,602.71 × 16,720.68
  4. Step 4: Simplify right side
    30,145.09x = 695,625,585.74
  5. Step 5: Solve for x
    x = 695,625,585.74/30,145.09
  6. Step 6: Final answer
    x = 23,075.92

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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.