Home / 25,859.04-38,787.78-7,140.22

Finding the Fourth Proportional to 25,859.04, 38,787.78 and 7,140.22

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Solution

The fourth proportional to 25,859.04, 38,787.78 and 7,140.22 is: 10,710.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,859.04 : 38,787.78 = 7,140.22 : x
  2. Step 2: Convert to fraction form
    25,859.04/38,787.78 = 7,140.22/x
  3. Step 3: Cross multiply
    25,859.04x = 38,787.78 × 7,140.22
  4. Step 4: Simplify right side
    25,859.04x = 276,953,282.51
  5. Step 5: Solve for x
    x = 276,953,282.51/25,859.04
  6. Step 6: Final answer
    x = 10,710.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.