Home / 30,622.68-42,248.38-19,293.20

Finding the Fourth Proportional to 30,622.68, 42,248.38 and 19,293.20

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Solution

The fourth proportional to 30,622.68, 42,248.38 and 19,293.20 is: 26,617.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,622.68 : 42,248.38 = 19,293.20 : x
  2. Step 2: Convert to fraction form
    30,622.68/42,248.38 = 19,293.20/x
  3. Step 3: Cross multiply
    30,622.68x = 42,248.38 × 19,293.20
  4. Step 4: Simplify right side
    30,622.68x = 815,106,445.02
  5. Step 5: Solve for x
    x = 815,106,445.02/30,622.68
  6. Step 6: Final answer
    x = 26,617.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.