Home / 38,499.93-53,126.45-21,501.81

Finding the Fourth Proportional to 38,499.93, 53,126.45 and 21,501.81

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Solution

The fourth proportional to 38,499.93, 53,126.45 and 21,501.81 is: 29,670.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,499.93 : 53,126.45 = 21,501.81 : x
  2. Step 2: Convert to fraction form
    38,499.93/53,126.45 = 21,501.81/x
  3. Step 3: Cross multiply
    38,499.93x = 53,126.45 × 21,501.81
  4. Step 4: Simplify right side
    38,499.93x = 1,142,314,726.37
  5. Step 5: Solve for x
    x = 1,142,314,726.37/38,499.93
  6. Step 6: Final answer
    x = 29,670.57

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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.