Home / 19,830.95-29,744.88-7,345.10

Finding the Fourth Proportional to 19,830.95, 29,744.88 and 7,345.10

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Solution

The fourth proportional to 19,830.95, 29,744.88 and 7,345.10 is: 11,017.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,830.95 : 29,744.88 = 7,345.10 : x
  2. Step 2: Convert to fraction form
    19,830.95/29,744.88 = 7,345.10/x
  3. Step 3: Cross multiply
    19,830.95x = 29,744.88 × 7,345.10
  4. Step 4: Simplify right side
    19,830.95x = 218,479,118.09
  5. Step 5: Solve for x
    x = 218,479,118.09/19,830.95
  6. Step 6: Final answer
    x = 11,017.08

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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.