Home / 42,539.58-63,712.08-20,368.62

Finding the Fourth Proportional to 42,539.58, 63,712.08 and 20,368.62

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Solution

The fourth proportional to 42,539.58, 63,712.08 and 20,368.62 is: 30,506.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,539.58 : 63,712.08 = 20,368.62 : x
  2. Step 2: Convert to fraction form
    42,539.58/63,712.08 = 20,368.62/x
  3. Step 3: Cross multiply
    42,539.58x = 63,712.08 × 20,368.62
  4. Step 4: Simplify right side
    42,539.58x = 1,297,727,146.93
  5. Step 5: Solve for x
    x = 1,297,727,146.93/42,539.58
  6. Step 6: Final answer
    x = 30,506.35

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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.