Home / 30,859.92-42,585.93-17,430.75

Finding the Fourth Proportional to 30,859.92, 42,585.93 and 17,430.75

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Solution

The fourth proportional to 30,859.92, 42,585.93 and 17,430.75 is: 24,054.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,859.92 : 42,585.93 = 17,430.75 : x
  2. Step 2: Convert to fraction form
    30,859.92/42,585.93 = 17,430.75/x
  3. Step 3: Cross multiply
    30,859.92x = 42,585.93 × 17,430.75
  4. Step 4: Simplify right side
    30,859.92x = 742,304,699.35
  5. Step 5: Solve for x
    x = 742,304,699.35/30,859.92
  6. Step 6: Final answer
    x = 24,054.01

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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.