Home / 19,530.90-29,287.71-5,680.98

Finding the Fourth Proportional to 19,530.90, 29,287.71 and 5,680.98

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Solution

The fourth proportional to 19,530.90, 29,287.71 and 5,680.98 is: 8,518.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,530.90 : 29,287.71 = 5,680.98 : x
  2. Step 2: Convert to fraction form
    19,530.90/29,287.71 = 5,680.98/x
  3. Step 3: Cross multiply
    19,530.90x = 29,287.71 × 5,680.98
  4. Step 4: Simplify right side
    19,530.90x = 166,382,894.76
  5. Step 5: Solve for x
    x = 166,382,894.76/19,530.90
  6. Step 6: Final answer
    x = 8,518.96

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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.