Home / 30,746.67-42,422.58-18,805.65

Finding the Fourth Proportional to 30,746.67, 42,422.58 and 18,805.65

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Solution

The fourth proportional to 30,746.67, 42,422.58 and 18,805.65 is: 25,947.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,746.67 : 42,422.58 = 18,805.65 : x
  2. Step 2: Convert to fraction form
    30,746.67/42,422.58 = 18,805.65/x
  3. Step 3: Cross multiply
    30,746.67x = 42,422.58 × 18,805.65
  4. Step 4: Simplify right side
    30,746.67x = 797,784,191.58
  5. Step 5: Solve for x
    x = 797,784,191.58/30,746.67
  6. Step 6: Final answer
    x = 25,947.01

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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.