Home / 30,445.81-42,017.18-17,017.11

Finding the Fourth Proportional to 30,445.81, 42,017.18 and 17,017.11

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Solution

The fourth proportional to 30,445.81, 42,017.18 and 17,017.11 is: 23,484.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,445.81 : 42,017.18 = 17,017.11 : x
  2. Step 2: Convert to fraction form
    30,445.81/42,017.18 = 17,017.11/x
  3. Step 3: Cross multiply
    30,445.81x = 42,017.18 × 17,017.11
  4. Step 4: Simplify right side
    30,445.81x = 715,010,888.86
  5. Step 5: Solve for x
    x = 715,010,888.86/30,445.81
  6. Step 6: Final answer
    x = 23,484.71

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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.