Home / 28,254.46-38,991.65-15,508.83

Finding the Fourth Proportional to 28,254.46, 38,991.65 and 15,508.83

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Solution

The fourth proportional to 28,254.46, 38,991.65 and 15,508.83 is: 21,402.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,254.46 : 38,991.65 = 15,508.83 : x
  2. Step 2: Convert to fraction form
    28,254.46/38,991.65 = 15,508.83/x
  3. Step 3: Cross multiply
    28,254.46x = 38,991.65 × 15,508.83
  4. Step 4: Simplify right side
    28,254.46x = 604,714,871.27
  5. Step 5: Solve for x
    x = 604,714,871.27/28,254.46
  6. Step 6: Final answer
    x = 21,402.46

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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.