Home / 34,551.01-47,678.64-20,401.12

Finding the Fourth Proportional to 34,551.01, 47,678.64 and 20,401.12

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Solution

The fourth proportional to 34,551.01, 47,678.64 and 20,401.12 is: 28,152.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,551.01 : 47,678.64 = 20,401.12 : x
  2. Step 2: Convert to fraction form
    34,551.01/47,678.64 = 20,401.12/x
  3. Step 3: Cross multiply
    34,551.01x = 47,678.64 × 20,401.12
  4. Step 4: Simplify right side
    34,551.01x = 972,697,656.08
  5. Step 5: Solve for x
    x = 972,697,656.08/34,551.01
  6. Step 6: Final answer
    x = 28,152.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.