Home / 19,032.80-28,554-15,368.32

Finding the Fourth Proportional to 19,032.80, 28,554 and 15,368.32

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Solution

The fourth proportional to 19,032.80, 28,554 and 15,368.32 is: 23,056.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,032.80 : 28,554 = 15,368.32 : x
  2. Step 2: Convert to fraction form
    19,032.80/28,554 = 15,368.32/x
  3. Step 3: Cross multiply
    19,032.80x = 28,554 × 15,368.32
  4. Step 4: Simplify right side
    19,032.80x = 438,827,009.28
  5. Step 5: Solve for x
    x = 438,827,009.28/19,032.80
  6. Step 6: Final answer
    x = 23,056.36

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.