Home / 21,970.43-32,955.54-5,330.40

Finding the Fourth Proportional to 21,970.43, 32,955.54 and 5,330.40

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Solution

The fourth proportional to 21,970.43, 32,955.54 and 5,330.40 is: 7,995.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,970.43 : 32,955.54 = 5,330.40 : x
  2. Step 2: Convert to fraction form
    21,970.43/32,955.54 = 5,330.40/x
  3. Step 3: Cross multiply
    21,970.43x = 32,955.54 × 5,330.40
  4. Step 4: Simplify right side
    21,970.43x = 175,666,210.42
  5. Step 5: Solve for x
    x = 175,666,210.42/21,970.43
  6. Step 6: Final answer
    x = 7,995.57

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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.