Home / 25,980.16-38,977.28-21,810.24

Finding the Fourth Proportional to 25,980.16, 38,977.28 and 21,810.24

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Solution

The fourth proportional to 25,980.16, 38,977.28 and 21,810.24 is: 32,721.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,980.16 : 38,977.28 = 21,810.24 : x
  2. Step 2: Convert to fraction form
    25,980.16/38,977.28 = 21,810.24/x
  3. Step 3: Cross multiply
    25,980.16x = 38,977.28 × 21,810.24
  4. Step 4: Simplify right side
    25,980.16x = 850,103,831.35
  5. Step 5: Solve for x
    x = 850,103,831.35/25,980.16
  6. Step 6: Final answer
    x = 32,721.27

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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.