Home / 39,592.65-54,638.55-21,686.51

Finding the Fourth Proportional to 39,592.65, 54,638.55 and 21,686.51

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Solution

The fourth proportional to 39,592.65, 54,638.55 and 21,686.51 is: 29,927.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,592.65 : 54,638.55 = 21,686.51 : x
  2. Step 2: Convert to fraction form
    39,592.65/54,638.55 = 21,686.51/x
  3. Step 3: Cross multiply
    39,592.65x = 54,638.55 × 21,686.51
  4. Step 4: Simplify right side
    39,592.65x = 1,184,919,187.77
  5. Step 5: Solve for x
    x = 1,184,919,187.77/39,592.65
  6. Step 6: Final answer
    x = 29,927.76

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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.