Home / 35,386.04-48,839.28-20,284.40

Finding the Fourth Proportional to 35,386.04, 48,839.28 and 20,284.40

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Solution

The fourth proportional to 35,386.04, 48,839.28 and 20,284.40 is: 27,996.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,386.04 : 48,839.28 = 20,284.40 : x
  2. Step 2: Convert to fraction form
    35,386.04/48,839.28 = 20,284.40/x
  3. Step 3: Cross multiply
    35,386.04x = 48,839.28 × 20,284.40
  4. Step 4: Simplify right side
    35,386.04x = 990,675,491.23
  5. Step 5: Solve for x
    x = 990,675,491.23/35,386.04
  6. Step 6: Final answer
    x = 27,996.22

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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.