Home / 42,302.05-63,408.42-14,195.45

Finding the Fourth Proportional to 42,302.05, 63,408.42 and 14,195.45

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Solution

The fourth proportional to 42,302.05, 63,408.42 and 14,195.45 is: 21,278.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,302.05 : 63,408.42 = 14,195.45 : x
  2. Step 2: Convert to fraction form
    42,302.05/63,408.42 = 14,195.45/x
  3. Step 3: Cross multiply
    42,302.05x = 63,408.42 × 14,195.45
  4. Step 4: Simplify right side
    42,302.05x = 900,111,214.21
  5. Step 5: Solve for x
    x = 900,111,214.21/42,302.05
  6. Step 6: Final answer
    x = 21,278.19

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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.