Home / 31,075.13-42,886.10-17,650.60

Finding the Fourth Proportional to 31,075.13, 42,886.10 and 17,650.60

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Solution

The fourth proportional to 31,075.13, 42,886.10 and 17,650.60 is: 24,359.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,075.13 : 42,886.10 = 17,650.60 : x
  2. Step 2: Convert to fraction form
    31,075.13/42,886.10 = 17,650.60/x
  3. Step 3: Cross multiply
    31,075.13x = 42,886.10 × 17,650.60
  4. Step 4: Simplify right side
    31,075.13x = 756,965,333.57
  5. Step 5: Solve for x
    x = 756,965,333.57/31,075.13
  6. Step 6: Final answer
    x = 24,359.20

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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.