Home / 28,129.96-42,184.38-10,590.28

Finding the Fourth Proportional to 28,129.96, 42,184.38 and 10,590.28

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Solution

The fourth proportional to 28,129.96, 42,184.38 and 10,590.28 is: 15,881.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,129.96 : 42,184.38 = 10,590.28 : x
  2. Step 2: Convert to fraction form
    28,129.96/42,184.38 = 10,590.28/x
  3. Step 3: Cross multiply
    28,129.96x = 42,184.38 × 10,590.28
  4. Step 4: Simplify right side
    28,129.96x = 446,744,395.83
  5. Step 5: Solve for x
    x = 446,744,395.83/28,129.96
  6. Step 6: Final answer
    x = 15,881.44

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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.