Home / 28,075.66-38,740-16,136.77

Finding the Fourth Proportional to 28,075.66, 38,740 and 16,136.77

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Solution

The fourth proportional to 28,075.66, 38,740 and 16,136.77 is: 22,266.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,075.66 : 38,740 = 16,136.77 : x
  2. Step 2: Convert to fraction form
    28,075.66/38,740 = 16,136.77/x
  3. Step 3: Cross multiply
    28,075.66x = 38,740 × 16,136.77
  4. Step 4: Simplify right side
    28,075.66x = 625,138,276.10
  5. Step 5: Solve for x
    x = 625,138,276.10/28,075.66
  6. Step 6: Final answer
    x = 22,266.20

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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.