Home / 20,681.16-31,039.65-10,827.33

Finding the Fourth Proportional to 20,681.16, 31,039.65 and 10,827.33

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Solution

The fourth proportional to 20,681.16, 31,039.65 and 10,827.33 is: 16,250.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,681.16 : 31,039.65 = 10,827.33 : x
  2. Step 2: Convert to fraction form
    20,681.16/31,039.65 = 10,827.33/x
  3. Step 3: Cross multiply
    20,681.16x = 31,039.65 × 10,827.33
  4. Step 4: Simplify right side
    20,681.16x = 336,076,533.63
  5. Step 5: Solve for x
    x = 336,076,533.63/20,681.16
  6. Step 6: Final answer
    x = 16,250.37

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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.