Home / 31,075.80-42,885.66-17,646.60

Finding the Fourth Proportional to 31,075.80, 42,885.66 and 17,646.60

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Solution

The fourth proportional to 31,075.80, 42,885.66 and 17,646.60 is: 24,352.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,075.80 : 42,885.66 = 17,646.60 : x
  2. Step 2: Convert to fraction form
    31,075.80/42,885.66 = 17,646.60/x
  3. Step 3: Cross multiply
    31,075.80x = 42,885.66 × 17,646.60
  4. Step 4: Simplify right side
    31,075.80x = 756,786,087.76
  5. Step 5: Solve for x
    x = 756,786,087.76/31,075.80
  6. Step 6: Final answer
    x = 24,352.91

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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.