Home / 28,528.35-39,368.89-15,953.10

Finding the Fourth Proportional to 28,528.35, 39,368.89 and 15,953.10

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Solution

The fourth proportional to 28,528.35, 39,368.89 and 15,953.10 is: 22,015.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,528.35 : 39,368.89 = 15,953.10 : x
  2. Step 2: Convert to fraction form
    28,528.35/39,368.89 = 15,953.10/x
  3. Step 3: Cross multiply
    28,528.35x = 39,368.89 × 15,953.10
  4. Step 4: Simplify right side
    28,528.35x = 628,055,839.06
  5. Step 5: Solve for x
    x = 628,055,839.06/28,528.35
  6. Step 6: Final answer
    x = 22,015.15

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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.