Home / 39,788.10-59,681.30-18,716.47

Finding the Fourth Proportional to 39,788.10, 59,681.30 and 18,716.47

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Solution

The fourth proportional to 39,788.10, 59,681.30 and 18,716.47 is: 28,074.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,788.10 : 59,681.30 = 18,716.47 : x
  2. Step 2: Convert to fraction form
    39,788.10/59,681.30 = 18,716.47/x
  3. Step 3: Cross multiply
    39,788.10x = 59,681.30 × 18,716.47
  4. Step 4: Simplify right side
    39,788.10x = 1,117,023,018.23
  5. Step 5: Solve for x
    x = 1,117,023,018.23/39,788.10
  6. Step 6: Final answer
    x = 28,074.30

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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.