Home / 30,877.34-42,610.45-16,730.15

Finding the Fourth Proportional to 30,877.34, 42,610.45 and 16,730.15

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Solution

The fourth proportional to 30,877.34, 42,610.45 and 16,730.15 is: 23,087.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,877.34 : 42,610.45 = 16,730.15 : x
  2. Step 2: Convert to fraction form
    30,877.34/42,610.45 = 16,730.15/x
  3. Step 3: Cross multiply
    30,877.34x = 42,610.45 × 16,730.15
  4. Step 4: Simplify right side
    30,877.34x = 712,879,220.07
  5. Step 5: Solve for x
    x = 712,879,220.07/30,877.34
  6. Step 6: Final answer
    x = 23,087.46

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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.