Home / 28,988.98-40,009.02-16,243.02

Finding the Fourth Proportional to 28,988.98, 40,009.02 and 16,243.02

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Solution

The fourth proportional to 28,988.98, 40,009.02 and 16,243.02 is: 22,417.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,988.98 : 40,009.02 = 16,243.02 : x
  2. Step 2: Convert to fraction form
    28,988.98/40,009.02 = 16,243.02/x
  3. Step 3: Cross multiply
    28,988.98x = 40,009.02 × 16,243.02
  4. Step 4: Simplify right side
    28,988.98x = 649,867,230.83
  5. Step 5: Solve for x
    x = 649,867,230.83/28,988.98
  6. Step 6: Final answer
    x = 22,417.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.