Home / 54,302.52-81,428.22-21,038.16

Finding the Fourth Proportional to 54,302.52, 81,428.22 and 21,038.16

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Solution

The fourth proportional to 54,302.52, 81,428.22 and 21,038.16 is: 31,547.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,302.52 : 81,428.22 = 21,038.16 : x
  2. Step 2: Convert to fraction form
    54,302.52/81,428.22 = 21,038.16/x
  3. Step 3: Cross multiply
    54,302.52x = 81,428.22 × 21,038.16
  4. Step 4: Simplify right side
    54,302.52x = 1,713,099,920.88
  5. Step 5: Solve for x
    x = 1,713,099,920.88/54,302.52
  6. Step 6: Final answer
    x = 31,547.34

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1.5x scale

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.