Home / 19,820.24-27,355.60-13,530.32

Finding the Fourth Proportional to 19,820.24, 27,355.60 and 13,530.32

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Solution

The fourth proportional to 19,820.24, 27,355.60 and 13,530.32 is: 18,674.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,820.24 : 27,355.60 = 13,530.32 : x
  2. Step 2: Convert to fraction form
    19,820.24/27,355.60 = 13,530.32/x
  3. Step 3: Cross multiply
    19,820.24x = 27,355.60 × 13,530.32
  4. Step 4: Simplify right side
    19,820.24x = 370,130,021.79
  5. Step 5: Solve for x
    x = 370,130,021.79/19,820.24
  6. Step 6: Final answer
    x = 18,674.35

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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.