Home / 30,860.28-42,587.10-17,430.87

Finding the Fourth Proportional to 30,860.28, 42,587.10 and 17,430.87

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Solution

The fourth proportional to 30,860.28, 42,587.10 and 17,430.87 is: 24,054.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,860.28 : 42,587.10 = 17,430.87 : x
  2. Step 2: Convert to fraction form
    30,860.28/42,587.10 = 17,430.87/x
  3. Step 3: Cross multiply
    30,860.28x = 42,587.10 × 17,430.87
  4. Step 4: Simplify right side
    30,860.28x = 742,330,203.78
  5. Step 5: Solve for x
    x = 742,330,203.78/30,860.28
  6. Step 6: Final answer
    x = 24,054.55

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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.