Home / 28,407.12-39,202.02-15,832.68

Finding the Fourth Proportional to 28,407.12, 39,202.02 and 15,832.68

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Solution

The fourth proportional to 28,407.12, 39,202.02 and 15,832.68 is: 21,849.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,407.12 : 39,202.02 = 15,832.68 : x
  2. Step 2: Convert to fraction form
    28,407.12/39,202.02 = 15,832.68/x
  3. Step 3: Cross multiply
    28,407.12x = 39,202.02 × 15,832.68
  4. Step 4: Simplify right side
    28,407.12x = 620,673,038.01
  5. Step 5: Solve for x
    x = 620,673,038.01/28,407.12
  6. Step 6: Final answer
    x = 21,849.21

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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.