Home / 28,373.63-39,155.87-15,798.65

Finding the Fourth Proportional to 28,373.63, 39,155.87 and 15,798.65

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Solution

The fourth proportional to 28,373.63, 39,155.87 and 15,798.65 is: 21,802.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,373.63 : 39,155.87 = 15,798.65 : x
  2. Step 2: Convert to fraction form
    28,373.63/39,155.87 = 15,798.65/x
  3. Step 3: Cross multiply
    28,373.63x = 39,155.87 × 15,798.65
  4. Step 4: Simplify right side
    28,373.63x = 618,609,729.29
  5. Step 5: Solve for x
    x = 618,609,729.29/28,373.63
  6. Step 6: Final answer
    x = 21,802.28

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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.