Home / 43,002.04-64,473.78-21,890.20

Finding the Fourth Proportional to 43,002.04, 64,473.78 and 21,890.20

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Solution

The fourth proportional to 43,002.04, 64,473.78 and 21,890.20 is: 32,820.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,002.04 : 64,473.78 = 21,890.20 : x
  2. Step 2: Convert to fraction form
    43,002.04/64,473.78 = 21,890.20/x
  3. Step 3: Cross multiply
    43,002.04x = 64,473.78 × 21,890.20
  4. Step 4: Simplify right side
    43,002.04x = 1,411,343,938.96
  5. Step 5: Solve for x
    x = 1,411,343,938.96/43,002.04
  6. Step 6: Final answer
    x = 32,820.40

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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.