Home / 28,283.28-39,030.98-15,708.03

Finding the Fourth Proportional to 28,283.28, 39,030.98 and 15,708.03

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Solution

The fourth proportional to 28,283.28, 39,030.98 and 15,708.03 is: 21,677.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,283.28 : 39,030.98 = 15,708.03 : x
  2. Step 2: Convert to fraction form
    28,283.28/39,030.98 = 15,708.03/x
  3. Step 3: Cross multiply
    28,283.28x = 39,030.98 × 15,708.03
  4. Step 4: Simplify right side
    28,283.28x = 613,099,804.77
  5. Step 5: Solve for x
    x = 613,099,804.77/28,283.28
  6. Step 6: Final answer
    x = 21,677.11

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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.