Home / 42,428.20-63,669.10-23,720.51

Finding the Fourth Proportional to 42,428.20, 63,669.10 and 23,720.51

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Solution

The fourth proportional to 42,428.20, 63,669.10 and 23,720.51 is: 35,595.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,428.20 : 63,669.10 = 23,720.51 : x
  2. Step 2: Convert to fraction form
    42,428.20/63,669.10 = 23,720.51/x
  3. Step 3: Cross multiply
    42,428.20x = 63,669.10 × 23,720.51
  4. Step 4: Simplify right side
    42,428.20x = 1,510,263,523.24
  5. Step 5: Solve for x
    x = 1,510,263,523.24/42,428.20
  6. Step 6: Final answer
    x = 35,595.75

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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.