Home / 42,386.88-63,592.01-18,713.28

Finding the Fourth Proportional to 42,386.88, 63,592.01 and 18,713.28

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Solution

The fourth proportional to 42,386.88, 63,592.01 and 18,713.28 is: 28,075.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,386.88 : 63,592.01 = 18,713.28 : x
  2. Step 2: Convert to fraction form
    42,386.88/63,592.01 = 18,713.28/x
  3. Step 3: Cross multiply
    42,386.88x = 63,592.01 × 18,713.28
  4. Step 4: Simplify right side
    42,386.88x = 1,190,014,995.33
  5. Step 5: Solve for x
    x = 1,190,014,995.33/42,386.88
  6. Step 6: Final answer
    x = 28,075.08

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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.