Home / 25,661.04-35,428.41-19,681.20

Finding the Fourth Proportional to 25,661.04, 35,428.41 and 19,681.20

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Solution

The fourth proportional to 25,661.04, 35,428.41 and 19,681.20 is: 27,172.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,661.04 : 35,428.41 = 19,681.20 : x
  2. Step 2: Convert to fraction form
    25,661.04/35,428.41 = 19,681.20/x
  3. Step 3: Cross multiply
    25,661.04x = 35,428.41 × 19,681.20
  4. Step 4: Simplify right side
    25,661.04x = 697,273,622.89
  5. Step 5: Solve for x
    x = 697,273,622.89/25,661.04
  6. Step 6: Final answer
    x = 27,172.46

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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.