Home / 30,209.90-45,307.56-12,675.02

Finding the Fourth Proportional to 30,209.90, 45,307.56 and 12,675.02

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Solution

The fourth proportional to 30,209.90, 45,307.56 and 12,675.02 is: 19,009.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,209.90 : 45,307.56 = 12,675.02 : x
  2. Step 2: Convert to fraction form
    30,209.90/45,307.56 = 12,675.02/x
  3. Step 3: Cross multiply
    30,209.90x = 45,307.56 × 12,675.02
  4. Step 4: Simplify right side
    30,209.90x = 574,274,229.15
  5. Step 5: Solve for x
    x = 574,274,229.15/30,209.90
  6. Step 6: Final answer
    x = 19,009.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.