Home / 42,914.20-64,378.76-14,448.45

Finding the Fourth Proportional to 42,914.20, 64,378.76 and 14,448.45

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Solution

The fourth proportional to 42,914.20, 64,378.76 and 14,448.45 is: 21,675.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,914.20 : 64,378.76 = 14,448.45 : x
  2. Step 2: Convert to fraction form
    42,914.20/64,378.76 = 14,448.45/x
  3. Step 3: Cross multiply
    42,914.20x = 64,378.76 × 14,448.45
  4. Step 4: Simplify right side
    42,914.20x = 930,173,294.92
  5. Step 5: Solve for x
    x = 930,173,294.92/42,914.20
  6. Step 6: Final answer
    x = 21,675.19

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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.