Home / 42,534.40-63,802.40-18,516.28

Finding the Fourth Proportional to 42,534.40, 63,802.40 and 18,516.28

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Solution

The fourth proportional to 42,534.40, 63,802.40 and 18,516.28 is: 27,774.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,534.40 : 63,802.40 = 18,516.28 : x
  2. Step 2: Convert to fraction form
    42,534.40/63,802.40 = 18,516.28/x
  3. Step 3: Cross multiply
    42,534.40x = 63,802.40 × 18,516.28
  4. Step 4: Simplify right side
    42,534.40x = 1,181,383,103.07
  5. Step 5: Solve for x
    x = 1,181,383,103.07/42,534.40
  6. Step 6: Final answer
    x = 27,774.77

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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.