Home / 20,284.32-28,000.08-15,263.16

Finding the Fourth Proportional to 20,284.32, 28,000.08 and 15,263.16

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Solution

The fourth proportional to 20,284.32, 28,000.08 and 15,263.16 is: 21,068.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,284.32 : 28,000.08 = 15,263.16 : x
  2. Step 2: Convert to fraction form
    20,284.32/28,000.08 = 15,263.16/x
  3. Step 3: Cross multiply
    20,284.32x = 28,000.08 × 15,263.16
  4. Step 4: Simplify right side
    20,284.32x = 427,369,701.05
  5. Step 5: Solve for x
    x = 427,369,701.05/20,284.32
  6. Step 6: Final answer
    x = 21,068.97

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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.