Home / 56,020.20-84,014.10-20,477.40

Finding the Fourth Proportional to 56,020.20, 84,014.10 and 20,477.40

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Solution

The fourth proportional to 56,020.20, 84,014.10 and 20,477.40 is: 30,710.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,020.20 : 84,014.10 = 20,477.40 : x
  2. Step 2: Convert to fraction form
    56,020.20/84,014.10 = 20,477.40/x
  3. Step 3: Cross multiply
    56,020.20x = 84,014.10 × 20,477.40
  4. Step 4: Simplify right side
    56,020.20x = 1,720,390,331.34
  5. Step 5: Solve for x
    x = 1,720,390,331.34/56,020.20
  6. Step 6: Final answer
    x = 30,710.18

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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.