Home / 28,860.90-39,830.04-16,116.58

Finding the Fourth Proportional to 28,860.90, 39,830.04 and 16,116.58

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Solution

The fourth proportional to 28,860.90, 39,830.04 and 16,116.58 is: 22,242.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,860.90 : 39,830.04 = 16,116.58 : x
  2. Step 2: Convert to fraction form
    28,860.90/39,830.04 = 16,116.58/x
  3. Step 3: Cross multiply
    28,860.90x = 39,830.04 × 16,116.58
  4. Step 4: Simplify right side
    28,860.90x = 641,924,026.06
  5. Step 5: Solve for x
    x = 641,924,026.06/28,860.90
  6. Step 6: Final answer
    x = 22,242.00

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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.