Home / 28,985.74-40,001.31-16,239.46

Finding the Fourth Proportional to 28,985.74, 40,001.31 and 16,239.46

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Solution

The fourth proportional to 28,985.74, 40,001.31 and 16,239.46 is: 22,411.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,985.74 : 40,001.31 = 16,239.46 : x
  2. Step 2: Convert to fraction form
    28,985.74/40,001.31 = 16,239.46/x
  3. Step 3: Cross multiply
    28,985.74x = 40,001.31 × 16,239.46
  4. Step 4: Simplify right side
    28,985.74x = 649,599,673.69
  5. Step 5: Solve for x
    x = 649,599,673.69/28,985.74
  6. Step 6: Final answer
    x = 22,411.01

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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.