Home / 42,970.16-64,464.84-17,997.80

Finding the Fourth Proportional to 42,970.16, 64,464.84 and 17,997.80

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Solution

The fourth proportional to 42,970.16, 64,464.84 and 17,997.80 is: 27,000.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,970.16 : 64,464.84 = 17,997.80 : x
  2. Step 2: Convert to fraction form
    42,970.16/64,464.84 = 17,997.80/x
  3. Step 3: Cross multiply
    42,970.16x = 64,464.84 × 17,997.80
  4. Step 4: Simplify right side
    42,970.16x = 1,160,225,297.35
  5. Step 5: Solve for x
    x = 1,160,225,297.35/42,970.16
  6. Step 6: Final answer
    x = 27,000.72

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1.5x scale

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.