Home / 35,410.16-53,002.92-19,780.40

Finding the Fourth Proportional to 35,410.16, 53,002.92 and 19,780.40

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Solution

The fourth proportional to 35,410.16, 53,002.92 and 19,780.40 is: 29,607.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,410.16 : 53,002.92 = 19,780.40 : x
  2. Step 2: Convert to fraction form
    35,410.16/53,002.92 = 19,780.40/x
  3. Step 3: Cross multiply
    35,410.16x = 53,002.92 × 19,780.40
  4. Step 4: Simplify right side
    35,410.16x = 1,048,418,958.77
  5. Step 5: Solve for x
    x = 1,048,418,958.77/35,410.16
  6. Step 6: Final answer
    x = 29,607.86

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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.