Home / 15,991.55-23,985.16-4,305.47

Finding the Fourth Proportional to 15,991.55, 23,985.16 and 4,305.47

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Solution

The fourth proportional to 15,991.55, 23,985.16 and 4,305.47 is: 6,457.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,991.55 : 23,985.16 = 4,305.47 : x
  2. Step 2: Convert to fraction form
    15,991.55/23,985.16 = 4,305.47/x
  3. Step 3: Cross multiply
    15,991.55x = 23,985.16 × 4,305.47
  4. Step 4: Simplify right side
    15,991.55x = 103,267,386.83
  5. Step 5: Solve for x
    x = 103,267,386.83/15,991.55
  6. Step 6: Final answer
    x = 6,457.62

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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.