Home / 35,319.15-52,979.90-12,818.43

Finding the Fourth Proportional to 35,319.15, 52,979.90 and 12,818.43

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Solution

The fourth proportional to 35,319.15, 52,979.90 and 12,818.43 is: 19,228.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,319.15 : 52,979.90 = 12,818.43 : x
  2. Step 2: Convert to fraction form
    35,319.15/52,979.90 = 12,818.43/x
  3. Step 3: Cross multiply
    35,319.15x = 52,979.90 × 12,818.43
  4. Step 4: Simplify right side
    35,319.15x = 679,119,075.46
  5. Step 5: Solve for x
    x = 679,119,075.46/35,319.15
  6. Step 6: Final answer
    x = 19,228.07

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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.