Home / 35,612.13-53,380.53-13,415.91

Finding the Fourth Proportional to 35,612.13, 53,380.53 and 13,415.91

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Solution

The fourth proportional to 35,612.13, 53,380.53 and 13,415.91 is: 20,109.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,612.13 : 53,380.53 = 13,415.91 : x
  2. Step 2: Convert to fraction form
    35,612.13/53,380.53 = 13,415.91/x
  3. Step 3: Cross multiply
    35,612.13x = 53,380.53 × 13,415.91
  4. Step 4: Simplify right side
    35,612.13x = 716,148,386.23
  5. Step 5: Solve for x
    x = 716,148,386.23/35,612.13
  6. Step 6: Final answer
    x = 20,109.68

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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.