Home / 28,875.82-39,849.12-16,130.12

Finding the Fourth Proportional to 28,875.82, 39,849.12 and 16,130.12

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Solution

The fourth proportional to 28,875.82, 39,849.12 and 16,130.12 is: 22,259.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,875.82 : 39,849.12 = 16,130.12 : x
  2. Step 2: Convert to fraction form
    28,875.82/39,849.12 = 16,130.12/x
  3. Step 3: Cross multiply
    28,875.82x = 39,849.12 × 16,130.12
  4. Step 4: Simplify right side
    28,875.82x = 642,771,087.49
  5. Step 5: Solve for x
    x = 642,771,087.49/28,875.82
  6. Step 6: Final answer
    x = 22,259.84

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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.