Home / 30,862.08-42,608.03-19,541.28

Finding the Fourth Proportional to 30,862.08, 42,608.03 and 19,541.28

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Solution

The fourth proportional to 30,862.08, 42,608.03 and 19,541.28 is: 26,978.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,862.08 : 42,608.03 = 19,541.28 : x
  2. Step 2: Convert to fraction form
    30,862.08/42,608.03 = 19,541.28/x
  3. Step 3: Cross multiply
    30,862.08x = 42,608.03 × 19,541.28
  4. Step 4: Simplify right side
    30,862.08x = 832,615,444.48
  5. Step 5: Solve for x
    x = 832,615,444.48/30,862.08
  6. Step 6: Final answer
    x = 26,978.59

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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.