Home / 39,606.23-54,655.74-21,700.85

Finding the Fourth Proportional to 39,606.23, 54,655.74 and 21,700.85

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Solution

The fourth proportional to 39,606.23, 54,655.74 and 21,700.85 is: 29,946.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,606.23 : 54,655.74 = 21,700.85 : x
  2. Step 2: Convert to fraction form
    39,606.23/54,655.74 = 21,700.85/x
  3. Step 3: Cross multiply
    39,606.23x = 54,655.74 × 21,700.85
  4. Step 4: Simplify right side
    39,606.23x = 1,186,075,742.10
  5. Step 5: Solve for x
    x = 1,186,075,742.10/39,606.23
  6. Step 6: Final answer
    x = 29,946.69

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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.