Home / 21,931.20-32,848.20-18,043.20

Finding the Fourth Proportional to 21,931.20, 32,848.20 and 18,043.20

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Solution

The fourth proportional to 21,931.20, 32,848.20 and 18,043.20 is: 27,024.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,931.20 : 32,848.20 = 18,043.20 : x
  2. Step 2: Convert to fraction form
    21,931.20/32,848.20 = 18,043.20/x
  3. Step 3: Cross multiply
    21,931.20x = 32,848.20 × 18,043.20
  4. Step 4: Simplify right side
    21,931.20x = 592,686,642.24
  5. Step 5: Solve for x
    x = 592,686,642.24/21,931.20
  6. Step 6: Final answer
    x = 27,024.82

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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.