Home / 42,354.70-63,490.73-20,162.11

Finding the Fourth Proportional to 42,354.70, 63,490.73 and 20,162.11

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Solution

The fourth proportional to 42,354.70, 63,490.73 and 20,162.11 is: 30,223.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,354.70 : 63,490.73 = 20,162.11 : x
  2. Step 2: Convert to fraction form
    42,354.70/63,490.73 = 20,162.11/x
  3. Step 3: Cross multiply
    42,354.70x = 63,490.73 × 20,162.11
  4. Step 4: Simplify right side
    42,354.70x = 1,280,107,291.37
  5. Step 5: Solve for x
    x = 1,280,107,291.37/42,354.70
  6. Step 6: Final answer
    x = 30,223.50

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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.