Home / 42,300.45-63,432.45-21,232.35

Finding the Fourth Proportional to 42,300.45, 63,432.45 and 21,232.35

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Solution

The fourth proportional to 42,300.45, 63,432.45 and 21,232.35 is: 31,839.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,300.45 : 63,432.45 = 21,232.35 : x
  2. Step 2: Convert to fraction form
    42,300.45/63,432.45 = 21,232.35/x
  3. Step 3: Cross multiply
    42,300.45x = 63,432.45 × 21,232.35
  4. Step 4: Simplify right side
    42,300.45x = 1,346,819,979.76
  5. Step 5: Solve for x
    x = 1,346,819,979.76/42,300.45
  6. Step 6: Final answer
    x = 31,839.38

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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.