Home / 28,095.96-38,719.11-20,124.35

Finding the Fourth Proportional to 28,095.96, 38,719.11 and 20,124.35

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Solution

The fourth proportional to 28,095.96, 38,719.11 and 20,124.35 is: 27,733.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,095.96 : 38,719.11 = 20,124.35 : x
  2. Step 2: Convert to fraction form
    28,095.96/38,719.11 = 20,124.35/x
  3. Step 3: Cross multiply
    28,095.96x = 38,719.11 × 20,124.35
  4. Step 4: Simplify right side
    28,095.96x = 779,196,948.40
  5. Step 5: Solve for x
    x = 779,196,948.40/28,095.96
  6. Step 6: Final answer
    x = 27,733.41

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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.