Home / 28,887.84-39,865.16-16,312.60

Finding the Fourth Proportional to 28,887.84, 39,865.16 and 16,312.60

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Solution

The fourth proportional to 28,887.84, 39,865.16 and 16,312.60 is: 22,511.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,887.84 : 39,865.16 = 16,312.60 : x
  2. Step 2: Convert to fraction form
    28,887.84/39,865.16 = 16,312.60/x
  3. Step 3: Cross multiply
    28,887.84x = 39,865.16 × 16,312.60
  4. Step 4: Simplify right side
    28,887.84x = 650,304,409.02
  5. Step 5: Solve for x
    x = 650,304,409.02/28,887.84
  6. Step 6: Final answer
    x = 22,511.35

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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.