Home / 42,648.45-63,975.21-13,066.58

Finding the Fourth Proportional to 42,648.45, 63,975.21 and 13,066.58

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Solution

The fourth proportional to 42,648.45, 63,975.21 and 13,066.58 is: 19,600.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,648.45 : 63,975.21 = 13,066.58 : x
  2. Step 2: Convert to fraction form
    42,648.45/63,975.21 = 13,066.58/x
  3. Step 3: Cross multiply
    42,648.45x = 63,975.21 × 13,066.58
  4. Step 4: Simplify right side
    42,648.45x = 835,937,199.48
  5. Step 5: Solve for x
    x = 835,937,199.48/42,648.45
  6. Step 6: Final answer
    x = 19,600.65

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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.