Home / 28,005.74-42,014.37-19,244.78

Finding the Fourth Proportional to 28,005.74, 42,014.37 and 19,244.78

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Solution

The fourth proportional to 28,005.74, 42,014.37 and 19,244.78 is: 28,871.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,005.74 : 42,014.37 = 19,244.78 : x
  2. Step 2: Convert to fraction form
    28,005.74/42,014.37 = 19,244.78/x
  3. Step 3: Cross multiply
    28,005.74x = 42,014.37 × 19,244.78
  4. Step 4: Simplify right side
    28,005.74x = 808,557,307.49
  5. Step 5: Solve for x
    x = 808,557,307.49/28,005.74
  6. Step 6: Final answer
    x = 28,871.13

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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.