Home / 20,681,341.80-31,022,012.70-17,492,695.80

Finding the Fourth Proportional to 20,681,341.80, 31,022,012.70 and 17,492,695.80

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Solution

The fourth proportional to 20,681,341.80, 31,022,012.70 and 17,492,695.80 is: 26,239,043.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,681,341.80 : 31,022,012.70 = 17,492,695.80 : x
  2. Step 2: Convert to fraction form
    20,681,341.80/31,022,012.70 = 17,492,695.80/x
  3. Step 3: Cross multiply
    20,681,341.80x = 31,022,012.70 × 17,492,695.80
  4. Step 4: Simplify right side
    20,681,341.80x = 542,658,631,264,836.69
  5. Step 5: Solve for x
    x = 542,658,631,264,836.69/20,681,341.80
  6. Step 6: Final answer
    x = 26,239,043.70

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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.