Home / 22,511.04-31,062.56-13,558.40

Finding the Fourth Proportional to 22,511.04, 31,062.56 and 13,558.40

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Solution

The fourth proportional to 22,511.04, 31,062.56 and 13,558.40 is: 18,708.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,511.04 : 31,062.56 = 13,558.40 : x
  2. Step 2: Convert to fraction form
    22,511.04/31,062.56 = 13,558.40/x
  3. Step 3: Cross multiply
    22,511.04x = 31,062.56 × 13,558.40
  4. Step 4: Simplify right side
    22,511.04x = 421,158,613.50
  5. Step 5: Solve for x
    x = 421,158,613.50/22,511.04
  6. Step 6: Final answer
    x = 18,708.98

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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.