Home / 42,455.45-63,613.47-25,820.30

Finding the Fourth Proportional to 42,455.45, 63,613.47 and 25,820.30

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Solution

The fourth proportional to 42,455.45, 63,613.47 and 25,820.30 is: 38,688.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,455.45 : 63,613.47 = 25,820.30 : x
  2. Step 2: Convert to fraction form
    42,455.45/63,613.47 = 25,820.30/x
  3. Step 3: Cross multiply
    42,455.45x = 63,613.47 × 25,820.30
  4. Step 4: Simplify right side
    42,455.45x = 1,642,518,879.44
  5. Step 5: Solve for x
    x = 1,642,518,879.44/42,455.45
  6. Step 6: Final answer
    x = 38,688.06

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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.