Home / 30,206.48-45,301.80-13,557.20

Finding the Fourth Proportional to 30,206.48, 45,301.80 and 13,557.20

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Solution

The fourth proportional to 30,206.48, 45,301.80 and 13,557.20 is: 20,332.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,206.48 : 45,301.80 = 13,557.20 : x
  2. Step 2: Convert to fraction form
    30,206.48/45,301.80 = 13,557.20/x
  3. Step 3: Cross multiply
    30,206.48x = 45,301.80 × 13,557.20
  4. Step 4: Simplify right side
    30,206.48x = 614,165,562.96
  5. Step 5: Solve for x
    x = 614,165,562.96/30,206.48
  6. Step 6: Final answer
    x = 20,332.25

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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.