Home / 35,077.09-52,638.70-12,890.66

Finding the Fourth Proportional to 35,077.09, 52,638.70 and 12,890.66

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Solution

The fourth proportional to 35,077.09, 52,638.70 and 12,890.66 is: 19,344.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,077.09 : 52,638.70 = 12,890.66 : x
  2. Step 2: Convert to fraction form
    35,077.09/52,638.70 = 12,890.66/x
  3. Step 3: Cross multiply
    35,077.09x = 52,638.70 × 12,890.66
  4. Step 4: Simplify right side
    35,077.09x = 678,547,369.19
  5. Step 5: Solve for x
    x = 678,547,369.19/35,077.09
  6. Step 6: Final answer
    x = 19,344.46

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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.