Home / 19,681.60-27,160.57-10,729.10

Finding the Fourth Proportional to 19,681.60, 27,160.57 and 10,729.10

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Solution

The fourth proportional to 19,681.60, 27,160.57 and 10,729.10 is: 14,806.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,681.60 : 27,160.57 = 10,729.10 : x
  2. Step 2: Convert to fraction form
    19,681.60/27,160.57 = 10,729.10/x
  3. Step 3: Cross multiply
    19,681.60x = 27,160.57 × 10,729.10
  4. Step 4: Simplify right side
    19,681.60x = 291,408,301.58
  5. Step 5: Solve for x
    x = 291,408,301.58/19,681.60
  6. Step 6: Final answer
    x = 14,806.13

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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.