Home / 39,035.34-53,868.45-21,129.93

Finding the Fourth Proportional to 39,035.34, 53,868.45 and 21,129.93

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Solution

The fourth proportional to 39,035.34, 53,868.45 and 21,129.93 is: 29,159.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,035.34 : 53,868.45 = 21,129.93 : x
  2. Step 2: Convert to fraction form
    39,035.34/53,868.45 = 21,129.93/x
  3. Step 3: Cross multiply
    39,035.34x = 53,868.45 × 21,129.93
  4. Step 4: Simplify right side
    39,035.34x = 1,138,236,577.71
  5. Step 5: Solve for x
    x = 1,138,236,577.71/39,035.34
  6. Step 6: Final answer
    x = 29,159.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.