Home / 19,284.16-28,927.36-5,432

Finding the Fourth Proportional to 19,284.16, 28,927.36 and 5,432

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Solution

The fourth proportional to 19,284.16, 28,927.36 and 5,432 is: 8,148.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,284.16 : 28,927.36 = 5,432 : x
  2. Step 2: Convert to fraction form
    19,284.16/28,927.36 = 5,432/x
  3. Step 3: Cross multiply
    19,284.16x = 28,927.36 × 5,432
  4. Step 4: Simplify right side
    19,284.16x = 157,133,419.52
  5. Step 5: Solve for x
    x = 157,133,419.52/19,284.16
  6. Step 6: Final answer
    x = 8,148.32

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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.