Home / 31,075.60-42,867.48-18,497.92

Finding the Fourth Proportional to 31,075.60, 42,867.48 and 18,497.92

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Solution

The fourth proportional to 31,075.60, 42,867.48 and 18,497.92 is: 25,517.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,075.60 : 42,867.48 = 18,497.92 : x
  2. Step 2: Convert to fraction form
    31,075.60/42,867.48 = 18,497.92/x
  3. Step 3: Cross multiply
    31,075.60x = 42,867.48 × 18,497.92
  4. Step 4: Simplify right side
    31,075.60x = 792,959,215.64
  5. Step 5: Solve for x
    x = 792,959,215.64/31,075.60
  6. Step 6: Final answer
    x = 25,517.10

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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.