Home / 28,007.10-42,022.80-14,156.10

Finding the Fourth Proportional to 28,007.10, 42,022.80 and 14,156.10

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Solution

The fourth proportional to 28,007.10, 42,022.80 and 14,156.10 is: 21,240.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,007.10 : 42,022.80 = 14,156.10 : x
  2. Step 2: Convert to fraction form
    28,007.10/42,022.80 = 14,156.10/x
  3. Step 3: Cross multiply
    28,007.10x = 42,022.80 × 14,156.10
  4. Step 4: Simplify right side
    28,007.10x = 594,878,959.08
  5. Step 5: Solve for x
    x = 594,878,959.08/28,007.10
  6. Step 6: Final answer
    x = 21,240.29

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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.