Home / 20,316.74-28,035.16-11,364.02

Finding the Fourth Proportional to 20,316.74, 28,035.16 and 11,364.02

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Solution

The fourth proportional to 20,316.74, 28,035.16 and 11,364.02 is: 15,681.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,316.74 : 28,035.16 = 11,364.02 : x
  2. Step 2: Convert to fraction form
    20,316.74/28,035.16 = 11,364.02/x
  3. Step 3: Cross multiply
    20,316.74x = 28,035.16 × 11,364.02
  4. Step 4: Simplify right side
    20,316.74x = 318,592,118.94
  5. Step 5: Solve for x
    x = 318,592,118.94/20,316.74
  6. Step 6: Final answer
    x = 15,681.26

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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.