Home / 42,647.28-63,960.48-18,941.76

Finding the Fourth Proportional to 42,647.28, 63,960.48 and 18,941.76

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Solution

The fourth proportional to 42,647.28, 63,960.48 and 18,941.76 is: 28,408.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,647.28 : 63,960.48 = 18,941.76 : x
  2. Step 2: Convert to fraction form
    42,647.28/63,960.48 = 18,941.76/x
  3. Step 3: Cross multiply
    42,647.28x = 63,960.48 × 18,941.76
  4. Step 4: Simplify right side
    42,647.28x = 1,211,524,061.64
  5. Step 5: Solve for x
    x = 1,211,524,061.64/42,647.28
  6. Step 6: Final answer
    x = 28,408.00

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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.