Home / 30,655.04-45,982.56-20,264.40

Finding the Fourth Proportional to 30,655.04, 45,982.56 and 20,264.40

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Solution

The fourth proportional to 30,655.04, 45,982.56 and 20,264.40 is: 30,396.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,655.04 : 45,982.56 = 20,264.40 : x
  2. Step 2: Convert to fraction form
    30,655.04/45,982.56 = 20,264.40/x
  3. Step 3: Cross multiply
    30,655.04x = 45,982.56 × 20,264.40
  4. Step 4: Simplify right side
    30,655.04x = 931,808,988.86
  5. Step 5: Solve for x
    x = 931,808,988.86/30,655.04
  6. Step 6: Final answer
    x = 30,396.60

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Similar ratio
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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.