Home / 39,518.95-54,536.02-21,369.55

Finding the Fourth Proportional to 39,518.95, 54,536.02 and 21,369.55

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Solution

The fourth proportional to 39,518.95, 54,536.02 and 21,369.55 is: 29,489.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,518.95 : 54,536.02 = 21,369.55 : x
  2. Step 2: Convert to fraction form
    39,518.95/54,536.02 = 21,369.55/x
  3. Step 3: Cross multiply
    39,518.95x = 54,536.02 × 21,369.55
  4. Step 4: Simplify right side
    39,518.95x = 1,165,410,206.19
  5. Step 5: Solve for x
    x = 1,165,410,206.19/39,518.95
  6. Step 6: Final answer
    x = 29,489.91

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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.