Home / 21,005,615.20-31,508,422.80-16,754,087.20

Finding the Fourth Proportional to 21,005,615.20, 31,508,422.80 and 16,754,087.20

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Solution

The fourth proportional to 21,005,615.20, 31,508,422.80 and 16,754,087.20 is: 25,131,130.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,005,615.20 : 31,508,422.80 = 16,754,087.20 : x
  2. Step 2: Convert to fraction form
    21,005,615.20/31,508,422.80 = 16,754,087.20/x
  3. Step 3: Cross multiply
    21,005,615.20x = 31,508,422.80 × 16,754,087.20
  4. Step 4: Simplify right side
    21,005,615.20x = 527,894,863,125,668.12
  5. Step 5: Solve for x
    x = 527,894,863,125,668.12/21,005,615.20
  6. Step 6: Final answer
    x = 25,131,130.80

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1.5x scale

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.