Home / 28,075.66-42,115.73-16,390.06

Finding the Fourth Proportional to 28,075.66, 42,115.73 and 16,390.06

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Solution

The fourth proportional to 28,075.66, 42,115.73 and 16,390.06 is: 24,586.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,075.66 : 42,115.73 = 16,390.06 : x
  2. Step 2: Convert to fraction form
    28,075.66/42,115.73 = 16,390.06/x
  3. Step 3: Cross multiply
    28,075.66x = 42,115.73 × 16,390.06
  4. Step 4: Simplify right side
    28,075.66x = 690,279,341.64
  5. Step 5: Solve for x
    x = 690,279,341.64/28,075.66
  6. Step 6: Final answer
    x = 24,586.40

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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.