Home / 21,235,729.28-31,833,412.40-13,537,769.32

Finding the Fourth Proportional to 21,235,729.28, 31,833,412.40 and 13,537,769.32

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Solution

The fourth proportional to 21,235,729.28, 31,833,412.40 and 13,537,769.32 is: 20,293,788.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,235,729.28 : 31,833,412.40 = 13,537,769.32 : x
  2. Step 2: Convert to fraction form
    21,235,729.28/31,833,412.40 = 13,537,769.32/x
  3. Step 3: Cross multiply
    21,235,729.28x = 31,833,412.40 × 13,537,769.32
  4. Step 4: Simplify right side
    21,235,729.28x = 430,953,393,739,627.56
  5. Step 5: Solve for x
    x = 430,953,393,739,627.56/21,235,729.28
  6. Step 6: Final answer
    x = 20,293,788.27

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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.