Home / 20,870.04-31,304.52-7,019.04

Finding the Fourth Proportional to 20,870.04, 31,304.52 and 7,019.04

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Solution

The fourth proportional to 20,870.04, 31,304.52 and 7,019.04 is: 10,528.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,870.04 : 31,304.52 = 7,019.04 : x
  2. Step 2: Convert to fraction form
    20,870.04/31,304.52 = 7,019.04/x
  3. Step 3: Cross multiply
    20,870.04x = 31,304.52 × 7,019.04
  4. Step 4: Simplify right side
    20,870.04x = 219,727,678.06
  5. Step 5: Solve for x
    x = 219,727,678.06/20,870.04
  6. Step 6: Final answer
    x = 10,528.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.