Home / 40,285.14-60,421.47-20,578.26

Finding the Fourth Proportional to 40,285.14, 60,421.47 and 20,578.26

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Solution

The fourth proportional to 40,285.14, 60,421.47 and 20,578.26 is: 30,864.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,285.14 : 60,421.47 = 20,578.26 : x
  2. Step 2: Convert to fraction form
    40,285.14/60,421.47 = 20,578.26/x
  3. Step 3: Cross multiply
    40,285.14x = 60,421.47 × 20,578.26
  4. Step 4: Simplify right side
    40,285.14x = 1,243,368,719.24
  5. Step 5: Solve for x
    x = 1,243,368,719.24/40,285.14
  6. Step 6: Final answer
    x = 30,864.20

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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.