Home / 40,001.80-60,002.70-21,339.40

Finding the Fourth Proportional to 40,001.80, 60,002.70 and 21,339.40

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Solution

The fourth proportional to 40,001.80, 60,002.70 and 21,339.40 is: 32,009.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,001.80 : 60,002.70 = 21,339.40 : x
  2. Step 2: Convert to fraction form
    40,001.80/60,002.70 = 21,339.40/x
  3. Step 3: Cross multiply
    40,001.80x = 60,002.70 × 21,339.40
  4. Step 4: Simplify right side
    40,001.80x = 1,280,421,616.38
  5. Step 5: Solve for x
    x = 1,280,421,616.38/40,001.80
  6. Step 6: Final answer
    x = 32,009.10

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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.