Home / 30,019.04-45,031.07-8,957.69

Finding the Fourth Proportional to 30,019.04, 45,031.07 and 8,957.69

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Solution

The fourth proportional to 30,019.04, 45,031.07 and 8,957.69 is: 13,437.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,019.04 : 45,031.07 = 8,957.69 : x
  2. Step 2: Convert to fraction form
    30,019.04/45,031.07 = 8,957.69/x
  3. Step 3: Cross multiply
    30,019.04x = 45,031.07 × 8,957.69
  4. Step 4: Simplify right side
    30,019.04x = 403,374,331.53
  5. Step 5: Solve for x
    x = 403,374,331.53/30,019.04
  6. Step 6: Final answer
    x = 13,437.28

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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.