Home / 25,871.36-35,699.78-15,802.25

Finding the Fourth Proportional to 25,871.36, 35,699.78 and 15,802.25

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Solution

The fourth proportional to 25,871.36, 35,699.78 and 15,802.25 is: 21,805.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,871.36 : 35,699.78 = 15,802.25 : x
  2. Step 2: Convert to fraction form
    25,871.36/35,699.78 = 15,802.25/x
  3. Step 3: Cross multiply
    25,871.36x = 35,699.78 × 15,802.25
  4. Step 4: Simplify right side
    25,871.36x = 564,136,709.51
  5. Step 5: Solve for x
    x = 564,136,709.51/25,871.36
  6. Step 6: Final answer
    x = 21,805.46

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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.