Home / 25,225.74-37,970.15-21,420.36

Finding the Fourth Proportional to 25,225.74, 37,970.15 and 21,420.36

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Solution

The fourth proportional to 25,225.74, 37,970.15 and 21,420.36 is: 32,242.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,225.74 : 37,970.15 = 21,420.36 : x
  2. Step 2: Convert to fraction form
    25,225.74/37,970.15 = 21,420.36/x
  3. Step 3: Cross multiply
    25,225.74x = 37,970.15 × 21,420.36
  4. Step 4: Simplify right side
    25,225.74x = 813,334,175.15
  5. Step 5: Solve for x
    x = 813,334,175.15/25,225.74
  6. Step 6: Final answer
    x = 32,242.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.