Home / 33,870.18-46,763.66-21,142.74

Finding the Fourth Proportional to 33,870.18, 46,763.66 and 21,142.74

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Solution

The fourth proportional to 33,870.18, 46,763.66 and 21,142.74 is: 29,191.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,870.18 : 46,763.66 = 21,142.74 : x
  2. Step 2: Convert to fraction form
    33,870.18/46,763.66 = 21,142.74/x
  3. Step 3: Cross multiply
    33,870.18x = 46,763.66 × 21,142.74
  4. Step 4: Simplify right side
    33,870.18x = 988,711,904.83
  5. Step 5: Solve for x
    x = 988,711,904.83/33,870.18
  6. Step 6: Final answer
    x = 29,191.22

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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.