Home / 28,075.16-38,742.06-15,325.81

Finding the Fourth Proportional to 28,075.16, 38,742.06 and 15,325.81

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Solution

The fourth proportional to 28,075.16, 38,742.06 and 15,325.81 is: 21,148.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,075.16 : 38,742.06 = 15,325.81 : x
  2. Step 2: Convert to fraction form
    28,075.16/38,742.06 = 15,325.81/x
  3. Step 3: Cross multiply
    28,075.16x = 38,742.06 × 15,325.81
  4. Step 4: Simplify right side
    28,075.16x = 593,753,411.19
  5. Step 5: Solve for x
    x = 593,753,411.19/28,075.16
  6. Step 6: Final answer
    x = 21,148.71

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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.