Home / 20,656.76-28,506.75-11,225.93

Finding the Fourth Proportional to 20,656.76, 28,506.75 and 11,225.93

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Solution

The fourth proportional to 20,656.76, 28,506.75 and 11,225.93 is: 15,492.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,656.76 : 28,506.75 = 11,225.93 : x
  2. Step 2: Convert to fraction form
    20,656.76/28,506.75 = 11,225.93/x
  3. Step 3: Cross multiply
    20,656.76x = 28,506.75 × 11,225.93
  4. Step 4: Simplify right side
    20,656.76x = 320,014,780.03
  5. Step 5: Solve for x
    x = 320,014,780.03/20,656.76
  6. Step 6: Final answer
    x = 15,492.01

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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.