Home / 30,240.68-45,345.40-13,586.48

Finding the Fourth Proportional to 30,240.68, 45,345.40 and 13,586.48

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Solution

The fourth proportional to 30,240.68, 45,345.40 and 13,586.48 is: 20,372.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,240.68 : 45,345.40 = 13,586.48 : x
  2. Step 2: Convert to fraction form
    30,240.68/45,345.40 = 13,586.48/x
  3. Step 3: Cross multiply
    30,240.68x = 45,345.40 × 13,586.48
  4. Step 4: Simplify right side
    30,240.68x = 616,084,370.19
  5. Step 5: Solve for x
    x = 616,084,370.19/30,240.68
  6. Step 6: Final answer
    x = 20,372.70

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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.