Home / 28,547.28-39,397.32-15,971.22

Finding the Fourth Proportional to 28,547.28, 39,397.32 and 15,971.22

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Solution

The fourth proportional to 28,547.28, 39,397.32 and 15,971.22 is: 22,041.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,547.28 : 39,397.32 = 15,971.22 : x
  2. Step 2: Convert to fraction form
    28,547.28/39,397.32 = 15,971.22/x
  3. Step 3: Cross multiply
    28,547.28x = 39,397.32 × 15,971.22
  4. Step 4: Simplify right side
    28,547.28x = 629,223,265.13
  5. Step 5: Solve for x
    x = 629,223,265.13/28,547.28
  6. Step 6: Final answer
    x = 22,041.44

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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.