Home / 31,068.09-42,876.95-19,138.41

Finding the Fourth Proportional to 31,068.09, 42,876.95 and 19,138.41

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Solution

The fourth proportional to 31,068.09, 42,876.95 and 19,138.41 is: 26,412.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,068.09 : 42,876.95 = 19,138.41 : x
  2. Step 2: Convert to fraction form
    31,068.09/42,876.95 = 19,138.41/x
  3. Step 3: Cross multiply
    31,068.09x = 42,876.95 × 19,138.41
  4. Step 4: Simplify right side
    31,068.09x = 820,596,552.96
  5. Step 5: Solve for x
    x = 820,596,552.96/31,068.09
  6. Step 6: Final answer
    x = 26,412.84

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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.