Home / 19,814.40-27,347.76-13,535.28

Finding the Fourth Proportional to 19,814.40, 27,347.76 and 13,535.28

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Solution

The fourth proportional to 19,814.40, 27,347.76 and 13,535.28 is: 18,681.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,814.40 : 27,347.76 = 13,535.28 : x
  2. Step 2: Convert to fraction form
    19,814.40/27,347.76 = 13,535.28/x
  3. Step 3: Cross multiply
    19,814.40x = 27,347.76 × 13,535.28
  4. Step 4: Simplify right side
    19,814.40x = 370,159,588.97
  5. Step 5: Solve for x
    x = 370,159,588.97/19,814.40
  6. Step 6: Final answer
    x = 18,681.34

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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.