Home / 25,929.68-35,831.40-21,212.24

Finding the Fourth Proportional to 25,929.68, 35,831.40 and 21,212.24

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Solution

The fourth proportional to 25,929.68, 35,831.40 and 21,212.24 is: 29,312.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,929.68 : 35,831.40 = 21,212.24 : x
  2. Step 2: Convert to fraction form
    25,929.68/35,831.40 = 21,212.24/x
  3. Step 3: Cross multiply
    25,929.68x = 35,831.40 × 21,212.24
  4. Step 4: Simplify right side
    25,929.68x = 760,064,256.34
  5. Step 5: Solve for x
    x = 760,064,256.34/25,929.68
  6. Step 6: Final answer
    x = 29,312.52

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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.