Home / 30,224.80-45,337.20-19,095.40

Finding the Fourth Proportional to 30,224.80, 45,337.20 and 19,095.40

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Solution

The fourth proportional to 30,224.80, 45,337.20 and 19,095.40 is: 28,643.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,224.80 : 45,337.20 = 19,095.40 : x
  2. Step 2: Convert to fraction form
    30,224.80/45,337.20 = 19,095.40/x
  3. Step 3: Cross multiply
    30,224.80x = 45,337.20 × 19,095.40
  4. Step 4: Simplify right side
    30,224.80x = 865,731,968.88
  5. Step 5: Solve for x
    x = 865,731,968.88/30,224.80
  6. Step 6: Final answer
    x = 28,643.10

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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.