Home / 28,402.11-39,201.59-17,655.09

Finding the Fourth Proportional to 28,402.11, 39,201.59 and 17,655.09

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Solution

The fourth proportional to 28,402.11, 39,201.59 and 17,655.09 is: 24,368.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,402.11 : 39,201.59 = 17,655.09 : x
  2. Step 2: Convert to fraction form
    28,402.11/39,201.59 = 17,655.09/x
  3. Step 3: Cross multiply
    28,402.11x = 39,201.59 × 17,655.09
  4. Step 4: Simplify right side
    28,402.11x = 692,107,511.32
  5. Step 5: Solve for x
    x = 692,107,511.32/28,402.11
  6. Step 6: Final answer
    x = 24,368.17

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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.