Home / 30,726.01-42,478.02-30,445.75

Finding the Fourth Proportional to 30,726.01, 42,478.02 and 30,445.75

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Solution

The fourth proportional to 30,726.01, 42,478.02 and 30,445.75 is: 42,090.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,726.01 : 42,478.02 = 30,445.75 : x
  2. Step 2: Convert to fraction form
    30,726.01/42,478.02 = 30,445.75/x
  3. Step 3: Cross multiply
    30,726.01x = 42,478.02 × 30,445.75
  4. Step 4: Simplify right side
    30,726.01x = 1,293,275,177.42
  5. Step 5: Solve for x
    x = 1,293,275,177.42/30,726.01
  6. Step 6: Final answer
    x = 42,090.57

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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.