Home / 30,746.67-42,430.55-17,318.15

Finding the Fourth Proportional to 30,746.67, 42,430.55 and 17,318.15

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Solution

The fourth proportional to 30,746.67, 42,430.55 and 17,318.15 is: 23,899.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,746.67 : 42,430.55 = 17,318.15 : x
  2. Step 2: Convert to fraction form
    30,746.67/42,430.55 = 17,318.15/x
  3. Step 3: Cross multiply
    30,746.67x = 42,430.55 × 17,318.15
  4. Step 4: Simplify right side
    30,746.67x = 734,818,330.74
  5. Step 5: Solve for x
    x = 734,818,330.74/30,746.67
  6. Step 6: Final answer
    x = 23,899.12

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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.