Home / 38,130-52,622.64-21,366.24

Finding the Fourth Proportional to 38,130, 52,622.64 and 21,366.24

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Solution

The fourth proportional to 38,130, 52,622.64 and 21,366.24 is: 29,487.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,130 : 52,622.64 = 21,366.24 : x
  2. Step 2: Convert to fraction form
    38,130/52,622.64 = 21,366.24/x
  3. Step 3: Cross multiply
    38,130x = 52,622.64 × 21,366.24
  4. Step 4: Simplify right side
    38,130x = 1,124,347,955.67
  5. Step 5: Solve for x
    x = 1,124,347,955.67/38,130
  6. Step 6: Final answer
    x = 29,487.23

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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.