Home / 30,988.50-46,482.48-21,103.26

Finding the Fourth Proportional to 30,988.50, 46,482.48 and 21,103.26

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Solution

The fourth proportional to 30,988.50, 46,482.48 and 21,103.26 is: 31,654.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,988.50 : 46,482.48 = 21,103.26 : x
  2. Step 2: Convert to fraction form
    30,988.50/46,482.48 = 21,103.26/x
  3. Step 3: Cross multiply
    30,988.50x = 46,482.48 × 21,103.26
  4. Step 4: Simplify right side
    30,988.50x = 980,931,860.88
  5. Step 5: Solve for x
    x = 980,931,860.88/30,988.50
  6. Step 6: Final answer
    x = 31,654.71

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.