Home / 39,710.86-59,567.72-19,978.68

Finding the Fourth Proportional to 39,710.86, 59,567.72 and 19,978.68

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Solution

The fourth proportional to 39,710.86, 59,567.72 and 19,978.68 is: 29,968.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,710.86 : 59,567.72 = 19,978.68 : x
  2. Step 2: Convert to fraction form
    39,710.86/59,567.72 = 19,978.68/x
  3. Step 3: Cross multiply
    39,710.86x = 59,567.72 × 19,978.68
  4. Step 4: Simplify right side
    39,710.86x = 1,190,084,416.21
  5. Step 5: Solve for x
    x = 1,190,084,416.21/39,710.86
  6. Step 6: Final answer
    x = 29,968.74

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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.