Home / 19,620.49-29,430.09-8,527.19

Finding the Fourth Proportional to 19,620.49, 29,430.09 and 8,527.19

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Solution

The fourth proportional to 19,620.49, 29,430.09 and 8,527.19 is: 12,790.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,620.49 : 29,430.09 = 8,527.19 : x
  2. Step 2: Convert to fraction form
    19,620.49/29,430.09 = 8,527.19/x
  3. Step 3: Cross multiply
    19,620.49x = 29,430.09 × 8,527.19
  4. Step 4: Simplify right side
    19,620.49x = 250,955,926.51
  5. Step 5: Solve for x
    x = 250,955,926.51/19,620.49
  6. Step 6: Final answer
    x = 12,790.50

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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.