Home / 19,830.32-27,355.52-13,457.28

Finding the Fourth Proportional to 19,830.32, 27,355.52 and 13,457.28

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Solution

The fourth proportional to 19,830.32, 27,355.52 and 13,457.28 is: 18,564.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,830.32 : 27,355.52 = 13,457.28 : x
  2. Step 2: Convert to fraction form
    19,830.32/27,355.52 = 13,457.28/x
  3. Step 3: Cross multiply
    19,830.32x = 27,355.52 × 13,457.28
  4. Step 4: Simplify right side
    19,830.32x = 368,130,892.19
  5. Step 5: Solve for x
    x = 368,130,892.19/19,830.32
  6. Step 6: Final answer
    x = 18,564.04

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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.