Home / 42,237.18-63,346.59-12,647.07

Finding the Fourth Proportional to 42,237.18, 63,346.59 and 12,647.07

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Solution

The fourth proportional to 42,237.18, 63,346.59 and 12,647.07 is: 18,967.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,237.18 : 63,346.59 = 12,647.07 : x
  2. Step 2: Convert to fraction form
    42,237.18/63,346.59 = 12,647.07/x
  3. Step 3: Cross multiply
    42,237.18x = 63,346.59 × 12,647.07
  4. Step 4: Simplify right side
    42,237.18x = 801,148,757.99
  5. Step 5: Solve for x
    x = 801,148,757.99/42,237.18
  6. Step 6: Final answer
    x = 18,967.86

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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.