Home / 28,573.22-39,421.88-18,509.38

Finding the Fourth Proportional to 28,573.22, 39,421.88 and 18,509.38

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Solution

The fourth proportional to 28,573.22, 39,421.88 and 18,509.38 is: 25,537.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,573.22 : 39,421.88 = 18,509.38 : x
  2. Step 2: Convert to fraction form
    28,573.22/39,421.88 = 18,509.38/x
  3. Step 3: Cross multiply
    28,573.22x = 39,421.88 × 18,509.38
  4. Step 4: Simplify right side
    28,573.22x = 729,674,366.13
  5. Step 5: Solve for x
    x = 729,674,366.13/28,573.22
  6. Step 6: Final answer
    x = 25,537.00

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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.