Home / 35,434.32-53,151.40-9,139.02

Finding the Fourth Proportional to 35,434.32, 53,151.40 and 9,139.02

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Solution

The fourth proportional to 35,434.32, 53,151.40 and 9,139.02 is: 13,708.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,434.32 : 53,151.40 = 9,139.02 : x
  2. Step 2: Convert to fraction form
    35,434.32/53,151.40 = 9,139.02/x
  3. Step 3: Cross multiply
    35,434.32x = 53,151.40 × 9,139.02
  4. Step 4: Simplify right side
    35,434.32x = 485,751,707.63
  5. Step 5: Solve for x
    x = 485,751,707.63/35,434.32
  6. Step 6: Final answer
    x = 13,708.51

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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.