Home / 25,119.68-37,509.76-21,840.32

Finding the Fourth Proportional to 25,119.68, 37,509.76 and 21,840.32

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Solution

The fourth proportional to 25,119.68, 37,509.76 and 21,840.32 is: 32,612.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,119.68 : 37,509.76 = 21,840.32 : x
  2. Step 2: Convert to fraction form
    25,119.68/37,509.76 = 21,840.32/x
  3. Step 3: Cross multiply
    25,119.68x = 37,509.76 × 21,840.32
  4. Step 4: Simplify right side
    25,119.68x = 819,225,161.52
  5. Step 5: Solve for x
    x = 819,225,161.52/25,119.68
  6. Step 6: Final answer
    x = 32,612.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.