Home / 28,948.16-39,948.46-15,700.16

Finding the Fourth Proportional to 28,948.16, 39,948.46 and 15,700.16

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Solution

The fourth proportional to 28,948.16, 39,948.46 and 15,700.16 is: 21,666.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,948.16 : 39,948.46 = 15,700.16 : x
  2. Step 2: Convert to fraction form
    28,948.16/39,948.46 = 15,700.16/x
  3. Step 3: Cross multiply
    28,948.16x = 39,948.46 × 15,700.16
  4. Step 4: Simplify right side
    28,948.16x = 627,196,935.51
  5. Step 5: Solve for x
    x = 627,196,935.51/28,948.16
  6. Step 6: Final answer
    x = 21,666.21

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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.