Home / 30,100.04-45,192.54-18,970.64

Finding the Fourth Proportional to 30,100.04, 45,192.54 and 18,970.64

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Solution

The fourth proportional to 30,100.04, 45,192.54 and 18,970.64 is: 28,482.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,100.04 : 45,192.54 = 18,970.64 : x
  2. Step 2: Convert to fraction form
    30,100.04/45,192.54 = 18,970.64/x
  3. Step 3: Cross multiply
    30,100.04x = 45,192.54 × 18,970.64
  4. Step 4: Simplify right side
    30,100.04x = 857,331,407.03
  5. Step 5: Solve for x
    x = 857,331,407.03/30,100.04
  6. Step 6: Final answer
    x = 28,482.73

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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.