Home / 28,322.13-39,080.16-16,386.58

Finding the Fourth Proportional to 28,322.13, 39,080.16 and 16,386.58

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Solution

The fourth proportional to 28,322.13, 39,080.16 and 16,386.58 is: 22,610.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,322.13 : 39,080.16 = 16,386.58 : x
  2. Step 2: Convert to fraction form
    28,322.13/39,080.16 = 16,386.58/x
  3. Step 3: Cross multiply
    28,322.13x = 39,080.16 × 16,386.58
  4. Step 4: Simplify right side
    28,322.13x = 640,390,070.55
  5. Step 5: Solve for x
    x = 640,390,070.55/28,322.13
  6. Step 6: Final answer
    x = 22,610.94

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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.