Home / 19,842.52-27,393.80-13,503.28

Finding the Fourth Proportional to 19,842.52, 27,393.80 and 13,503.28

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Solution

The fourth proportional to 19,842.52, 27,393.80 and 13,503.28 is: 18,642.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,842.52 : 27,393.80 = 13,503.28 : x
  2. Step 2: Convert to fraction form
    19,842.52/27,393.80 = 13,503.28/x
  3. Step 3: Cross multiply
    19,842.52x = 27,393.80 × 13,503.28
  4. Step 4: Simplify right side
    19,842.52x = 369,906,151.66
  5. Step 5: Solve for x
    x = 369,906,151.66/19,842.52
  6. Step 6: Final answer
    x = 18,642.10

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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.