Home / 28,075.14-38,743.12-15,328.58

Finding the Fourth Proportional to 28,075.14, 38,743.12 and 15,328.58

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Solution

The fourth proportional to 28,075.14, 38,743.12 and 15,328.58 is: 21,153.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,075.14 : 38,743.12 = 15,328.58 : x
  2. Step 2: Convert to fraction form
    28,075.14/38,743.12 = 15,328.58/x
  3. Step 3: Cross multiply
    28,075.14x = 38,743.12 × 15,328.58
  4. Step 4: Simplify right side
    28,075.14x = 593,877,014.37
  5. Step 5: Solve for x
    x = 593,877,014.37/28,075.14
  6. Step 6: Final answer
    x = 21,153.13

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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.