Home / 38,425.03-53,026.86-21,430.36

Finding the Fourth Proportional to 38,425.03, 53,026.86 and 21,430.36

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Solution

The fourth proportional to 38,425.03, 53,026.86 and 21,430.36 is: 29,574.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,425.03 : 53,026.86 = 21,430.36 : x
  2. Step 2: Convert to fraction form
    38,425.03/53,026.86 = 21,430.36/x
  3. Step 3: Cross multiply
    38,425.03x = 53,026.86 × 21,430.36
  4. Step 4: Simplify right side
    38,425.03x = 1,136,384,699.47
  5. Step 5: Solve for x
    x = 1,136,384,699.47/38,425.03
  6. Step 6: Final answer
    x = 29,574.07

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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.