Home / 20,547.32-28,346.27-12,045.12

Finding the Fourth Proportional to 20,547.32, 28,346.27 and 12,045.12

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Solution

The fourth proportional to 20,547.32, 28,346.27 and 12,045.12 is: 16,616.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,547.32 : 28,346.27 = 12,045.12 : x
  2. Step 2: Convert to fraction form
    20,547.32/28,346.27 = 12,045.12/x
  3. Step 3: Cross multiply
    20,547.32x = 28,346.27 × 12,045.12
  4. Step 4: Simplify right side
    20,547.32x = 341,434,163.48
  5. Step 5: Solve for x
    x = 341,434,163.48/20,547.32
  6. Step 6: Final answer
    x = 16,616.97

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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.