Home / 28,970,985.76-39,983,436.24-17,374,928.80

Finding the Fourth Proportional to 28,970,985.76, 39,983,436.24 and 17,374,928.80

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Solution

The fourth proportional to 28,970,985.76, 39,983,436.24 and 17,374,928.80 is: 23,979,486.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,970,985.76 : 39,983,436.24 = 17,374,928.80 : x
  2. Step 2: Convert to fraction form
    28,970,985.76/39,983,436.24 = 17,374,928.80/x
  3. Step 3: Cross multiply
    28,970,985.76x = 39,983,436.24 × 17,374,928.80
  4. Step 4: Simplify right side
    28,970,985.76x = 694,709,357,849,339.75
  5. Step 5: Solve for x
    x = 694,709,357,849,339.75/28,970,985.76
  6. Step 6: Final answer
    x = 23,979,486.36

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.