Home / 20,322.18-28,095.93-15,008.58

Finding the Fourth Proportional to 20,322.18, 28,095.93 and 15,008.58

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Solution

The fourth proportional to 20,322.18, 28,095.93 and 15,008.58 is: 20,749.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,322.18 : 28,095.93 = 15,008.58 : x
  2. Step 2: Convert to fraction form
    20,322.18/28,095.93 = 15,008.58/x
  3. Step 3: Cross multiply
    20,322.18x = 28,095.93 × 15,008.58
  4. Step 4: Simplify right side
    20,322.18x = 421,680,013.08
  5. Step 5: Solve for x
    x = 421,680,013.08/20,322.18
  6. Step 6: Final answer
    x = 20,749.74

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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.