Home / 20,117.49-27,752.80-12,558.93

Finding the Fourth Proportional to 20,117.49, 27,752.80 and 12,558.93

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Solution

The fourth proportional to 20,117.49, 27,752.80 and 12,558.93 is: 17,325.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,117.49 : 27,752.80 = 12,558.93 : x
  2. Step 2: Convert to fraction form
    20,117.49/27,752.80 = 12,558.93/x
  3. Step 3: Cross multiply
    20,117.49x = 27,752.80 × 12,558.93
  4. Step 4: Simplify right side
    20,117.49x = 348,545,472.50
  5. Step 5: Solve for x
    x = 348,545,472.50/20,117.49
  6. Step 6: Final answer
    x = 17,325.50

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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.