Home / 28,547.29-39,394.72-15,800.22

Finding the Fourth Proportional to 28,547.29, 39,394.72 and 15,800.22

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Solution

The fourth proportional to 28,547.29, 39,394.72 and 15,800.22 is: 21,804.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,547.29 : 39,394.72 = 15,800.22 : x
  2. Step 2: Convert to fraction form
    28,547.29/39,394.72 = 15,800.22/x
  3. Step 3: Cross multiply
    28,547.29x = 39,394.72 × 15,800.22
  4. Step 4: Simplify right side
    28,547.29x = 622,445,262.59
  5. Step 5: Solve for x
    x = 622,445,262.59/28,547.29
  6. Step 6: Final answer
    x = 21,804.00

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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.