Home / 43,618.02-65,420.01-12,445.98

Finding the Fourth Proportional to 43,618.02, 65,420.01 and 12,445.98

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Solution

The fourth proportional to 43,618.02, 65,420.01 and 12,445.98 is: 18,666.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,618.02 : 65,420.01 = 12,445.98 : x
  2. Step 2: Convert to fraction form
    43,618.02/65,420.01 = 12,445.98/x
  3. Step 3: Cross multiply
    43,618.02x = 65,420.01 × 12,445.98
  4. Step 4: Simplify right side
    43,618.02x = 814,216,136.06
  5. Step 5: Solve for x
    x = 814,216,136.06/43,618.02
  6. Step 6: Final answer
    x = 18,666.97

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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.