Home / 39,561.46-54,596.10-21,657.76

Finding the Fourth Proportional to 39,561.46, 54,596.10 and 21,657.76

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Solution

The fourth proportional to 39,561.46, 54,596.10 and 21,657.76 is: 29,888.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,561.46 : 54,596.10 = 21,657.76 : x
  2. Step 2: Convert to fraction form
    39,561.46/54,596.10 = 21,657.76/x
  3. Step 3: Cross multiply
    39,561.46x = 54,596.10 × 21,657.76
  4. Step 4: Simplify right side
    39,561.46x = 1,182,429,230.74
  5. Step 5: Solve for x
    x = 1,182,429,230.74/39,561.46
  6. Step 6: Final answer
    x = 29,888.41

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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.