Home / 42,435.99-63,557.10-20,264.99

Finding the Fourth Proportional to 42,435.99, 63,557.10 and 20,264.99

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Solution

The fourth proportional to 42,435.99, 63,557.10 and 20,264.99 is: 30,351.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,435.99 : 63,557.10 = 20,264.99 : x
  2. Step 2: Convert to fraction form
    42,435.99/63,557.10 = 20,264.99/x
  3. Step 3: Cross multiply
    42,435.99x = 63,557.10 × 20,264.99
  4. Step 4: Simplify right side
    42,435.99x = 1,287,983,678.14
  5. Step 5: Solve for x
    x = 1,287,983,678.14/42,435.99
  6. Step 6: Final answer
    x = 30,351.21

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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.