Home / 40,901.03-61,352.32-12,820.47

Finding the Fourth Proportional to 40,901.03, 61,352.32 and 12,820.47

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Solution

The fourth proportional to 40,901.03, 61,352.32 and 12,820.47 is: 19,230.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,901.03 : 61,352.32 = 12,820.47 : x
  2. Step 2: Convert to fraction form
    40,901.03/61,352.32 = 12,820.47/x
  3. Step 3: Cross multiply
    40,901.03x = 61,352.32 × 12,820.47
  4. Step 4: Simplify right side
    40,901.03x = 786,565,577.99
  5. Step 5: Solve for x
    x = 786,565,577.99/40,901.03
  6. Step 6: Final answer
    x = 19,230.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.