Home / 39,465.12-54,461.18-21,559.67

Finding the Fourth Proportional to 39,465.12, 54,461.18 and 21,559.67

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Solution

The fourth proportional to 39,465.12, 54,461.18 and 21,559.67 is: 29,751.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,465.12 : 54,461.18 = 21,559.67 : x
  2. Step 2: Convert to fraction form
    39,465.12/54,461.18 = 21,559.67/x
  3. Step 3: Cross multiply
    39,465.12x = 54,461.18 × 21,559.67
  4. Step 4: Simplify right side
    39,465.12x = 1,174,164,850.20
  5. Step 5: Solve for x
    x = 1,174,164,850.20/39,465.12
  6. Step 6: Final answer
    x = 29,751.96

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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.