Home / 35,156.63-52,739.30-12,970.13

Finding the Fourth Proportional to 35,156.63, 52,739.30 and 12,970.13

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Solution

The fourth proportional to 35,156.63, 52,739.30 and 12,970.13 is: 19,456.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,156.63 : 52,739.30 = 12,970.13 : x
  2. Step 2: Convert to fraction form
    35,156.63/52,739.30 = 12,970.13/x
  3. Step 3: Cross multiply
    35,156.63x = 52,739.30 × 12,970.13
  4. Step 4: Simplify right side
    35,156.63x = 684,035,345.84
  5. Step 5: Solve for x
    x = 684,035,345.84/35,156.63
  6. Step 6: Final answer
    x = 19,456.79

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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.