Home / 19,888.50-29,830.80-6,739.32

Finding the Fourth Proportional to 19,888.50, 29,830.80 and 6,739.32

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Solution

The fourth proportional to 19,888.50, 29,830.80 and 6,739.32 is: 10,108.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,888.50 : 29,830.80 = 6,739.32 : x
  2. Step 2: Convert to fraction form
    19,888.50/29,830.80 = 6,739.32/x
  3. Step 3: Cross multiply
    19,888.50x = 29,830.80 × 6,739.32
  4. Step 4: Simplify right side
    19,888.50x = 201,039,307.06
  5. Step 5: Solve for x
    x = 201,039,307.06/19,888.50
  6. Step 6: Final answer
    x = 10,108.32

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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.