Home / 30,897.80-42,637.82-16,750.34

Finding the Fourth Proportional to 30,897.80, 42,637.82 and 16,750.34

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Solution

The fourth proportional to 30,897.80, 42,637.82 and 16,750.34 is: 23,114.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,897.80 : 42,637.82 = 16,750.34 : x
  2. Step 2: Convert to fraction form
    30,897.80/42,637.82 = 16,750.34/x
  3. Step 3: Cross multiply
    30,897.80x = 42,637.82 × 16,750.34
  4. Step 4: Simplify right side
    30,897.80x = 714,197,684.92
  5. Step 5: Solve for x
    x = 714,197,684.92/30,897.80
  6. Step 6: Final answer
    x = 23,114.84

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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.