Home / 39,224.94-54,130.43-21,319.89

Finding the Fourth Proportional to 39,224.94, 54,130.43 and 21,319.89

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Solution

The fourth proportional to 39,224.94, 54,130.43 and 21,319.89 is: 29,421.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,224.94 : 54,130.43 = 21,319.89 : x
  2. Step 2: Convert to fraction form
    39,224.94/54,130.43 = 21,319.89/x
  3. Step 3: Cross multiply
    39,224.94x = 54,130.43 × 21,319.89
  4. Step 4: Simplify right side
    39,224.94x = 1,154,054,706.65
  5. Step 5: Solve for x
    x = 1,154,054,706.65/39,224.94
  6. Step 6: Final answer
    x = 29,421.45

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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.