Home / 28,161.64-42,225.40-14,105.32

Finding the Fourth Proportional to 28,161.64, 42,225.40 and 14,105.32

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Solution

The fourth proportional to 28,161.64, 42,225.40 and 14,105.32 is: 21,149.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,161.64 : 42,225.40 = 14,105.32 : x
  2. Step 2: Convert to fraction form
    28,161.64/42,225.40 = 14,105.32/x
  3. Step 3: Cross multiply
    28,161.64x = 42,225.40 × 14,105.32
  4. Step 4: Simplify right side
    28,161.64x = 595,602,779.13
  5. Step 5: Solve for x
    x = 595,602,779.13/28,161.64
  6. Step 6: Final answer
    x = 21,149.44

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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.