Home / 42,038.28-63,072.06-18,681.16

Finding the Fourth Proportional to 42,038.28, 63,072.06 and 18,681.16

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Solution

The fourth proportional to 42,038.28, 63,072.06 and 18,681.16 is: 28,028.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,038.28 : 63,072.06 = 18,681.16 : x
  2. Step 2: Convert to fraction form
    42,038.28/63,072.06 = 18,681.16/x
  3. Step 3: Cross multiply
    42,038.28x = 63,072.06 × 18,681.16
  4. Step 4: Simplify right side
    42,038.28x = 1,178,259,244.39
  5. Step 5: Solve for x
    x = 1,178,259,244.39/42,038.28
  6. Step 6: Final answer
    x = 28,028.25

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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.