Home / 30,657.62-42,326.88-20,065.16

Finding the Fourth Proportional to 30,657.62, 42,326.88 and 20,065.16

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Solution

The fourth proportional to 30,657.62, 42,326.88 and 20,065.16 is: 27,702.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,657.62 : 42,326.88 = 20,065.16 : x
  2. Step 2: Convert to fraction form
    30,657.62/42,326.88 = 20,065.16/x
  3. Step 3: Cross multiply
    30,657.62x = 42,326.88 × 20,065.16
  4. Step 4: Simplify right side
    30,657.62x = 849,295,619.50
  5. Step 5: Solve for x
    x = 849,295,619.50/30,657.62
  6. Step 6: Final answer
    x = 27,702.59

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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.