Home / 20,547.02-30,819.85-8,697.58

Finding the Fourth Proportional to 20,547.02, 30,819.85 and 8,697.58

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Solution

The fourth proportional to 20,547.02, 30,819.85 and 8,697.58 is: 13,046.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,547.02 : 30,819.85 = 8,697.58 : x
  2. Step 2: Convert to fraction form
    20,547.02/30,819.85 = 8,697.58/x
  3. Step 3: Cross multiply
    20,547.02x = 30,819.85 × 8,697.58
  4. Step 4: Simplify right side
    20,547.02x = 268,058,012.17
  5. Step 5: Solve for x
    x = 268,058,012.17/20,547.02
  6. Step 6: Final answer
    x = 13,046.08

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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.