Home / 28,470.48-42,711.72-10,701.28

Finding the Fourth Proportional to 28,470.48, 42,711.72 and 10,701.28

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Solution

The fourth proportional to 28,470.48, 42,711.72 and 10,701.28 is: 16,054.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,470.48 : 42,711.72 = 10,701.28 : x
  2. Step 2: Convert to fraction form
    28,470.48/42,711.72 = 10,701.28/x
  3. Step 3: Cross multiply
    28,470.48x = 42,711.72 × 10,701.28
  4. Step 4: Simplify right side
    28,470.48x = 457,070,075.00
  5. Step 5: Solve for x
    x = 457,070,075.00/28,470.48
  6. Step 6: Final answer
    x = 16,054.18

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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.