Home / 28,352.01-39,126.45-15,605.90

Finding the Fourth Proportional to 28,352.01, 39,126.45 and 15,605.90

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Solution

The fourth proportional to 28,352.01, 39,126.45 and 15,605.90 is: 21,536.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,352.01 : 39,126.45 = 15,605.90 : x
  2. Step 2: Convert to fraction form
    28,352.01/39,126.45 = 15,605.90/x
  3. Step 3: Cross multiply
    28,352.01x = 39,126.45 × 15,605.90
  4. Step 4: Simplify right side
    28,352.01x = 610,603,475.67
  5. Step 5: Solve for x
    x = 610,603,475.67/28,352.01
  6. Step 6: Final answer
    x = 21,536.51

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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.