Home / 28,509.23-39,341.51-15,588.27

Finding the Fourth Proportional to 28,509.23, 39,341.51 and 15,588.27

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Solution

The fourth proportional to 28,509.23, 39,341.51 and 15,588.27 is: 21,511.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,509.23 : 39,341.51 = 15,588.27 : x
  2. Step 2: Convert to fraction form
    28,509.23/39,341.51 = 15,588.27/x
  3. Step 3: Cross multiply
    28,509.23x = 39,341.51 × 15,588.27
  4. Step 4: Simplify right side
    28,509.23x = 613,266,002.15
  5. Step 5: Solve for x
    x = 613,266,002.15/28,509.23
  6. Step 6: Final answer
    x = 21,511.14

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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.