Home / 31,645.80-47,403.90-16,072.20

Finding the Fourth Proportional to 31,645.80, 47,403.90 and 16,072.20

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Solution

The fourth proportional to 31,645.80, 47,403.90 and 16,072.20 is: 24,075.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,645.80 : 47,403.90 = 16,072.20 : x
  2. Step 2: Convert to fraction form
    31,645.80/47,403.90 = 16,072.20/x
  3. Step 3: Cross multiply
    31,645.80x = 47,403.90 × 16,072.20
  4. Step 4: Simplify right side
    31,645.80x = 761,884,961.58
  5. Step 5: Solve for x
    x = 761,884,961.58/31,645.80
  6. Step 6: Final answer
    x = 24,075.39

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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.