Home / 39,624.57-54,681.04-21,719.19

Finding the Fourth Proportional to 39,624.57, 54,681.04 and 21,719.19

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Solution

The fourth proportional to 39,624.57, 54,681.04 and 21,719.19 is: 29,972.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,624.57 : 54,681.04 = 21,719.19 : x
  2. Step 2: Convert to fraction form
    39,624.57/54,681.04 = 21,719.19/x
  3. Step 3: Cross multiply
    39,624.57x = 54,681.04 × 21,719.19
  4. Step 4: Simplify right side
    39,624.57x = 1,187,627,515.16
  5. Step 5: Solve for x
    x = 1,187,627,515.16/39,624.57
  6. Step 6: Final answer
    x = 29,972.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.