Home / 19,075.10-28,612.65-17,999.90

Finding the Fourth Proportional to 19,075.10, 28,612.65 and 17,999.90

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Solution

The fourth proportional to 19,075.10, 28,612.65 and 17,999.90 is: 26,999.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,075.10 : 28,612.65 = 17,999.90 : x
  2. Step 2: Convert to fraction form
    19,075.10/28,612.65 = 17,999.90/x
  3. Step 3: Cross multiply
    19,075.10x = 28,612.65 × 17,999.90
  4. Step 4: Simplify right side
    19,075.10x = 515,024,838.74
  5. Step 5: Solve for x
    x = 515,024,838.74/19,075.10
  6. Step 6: Final answer
    x = 26,999.85

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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.