Home / 28,320.63-39,082.46-15,574.03

Finding the Fourth Proportional to 28,320.63, 39,082.46 and 15,574.03

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Solution

The fourth proportional to 28,320.63, 39,082.46 and 15,574.03 is: 21,492.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,320.63 : 39,082.46 = 15,574.03 : x
  2. Step 2: Convert to fraction form
    28,320.63/39,082.46 = 15,574.03/x
  3. Step 3: Cross multiply
    28,320.63x = 39,082.46 × 15,574.03
  4. Step 4: Simplify right side
    28,320.63x = 608,671,404.51
  5. Step 5: Solve for x
    x = 608,671,404.51/28,320.63
  6. Step 6: Final answer
    x = 21,492.16

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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.