Home / 42,400.04-63,601.41-21,328.57

Finding the Fourth Proportional to 42,400.04, 63,601.41 and 21,328.57

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Solution

The fourth proportional to 42,400.04, 63,601.41 and 21,328.57 is: 31,993.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,400.04 : 63,601.41 = 21,328.57 : x
  2. Step 2: Convert to fraction form
    42,400.04/63,601.41 = 21,328.57/x
  3. Step 3: Cross multiply
    42,400.04x = 63,601.41 × 21,328.57
  4. Step 4: Simplify right side
    42,400.04x = 1,356,526,807.28
  5. Step 5: Solve for x
    x = 1,356,526,807.28/42,400.04
  6. Step 6: Final answer
    x = 31,993.53

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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.