Home / 38,426.18-53,027.91-21,430.62

Finding the Fourth Proportional to 38,426.18, 53,027.91 and 21,430.62

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Solution

The fourth proportional to 38,426.18, 53,027.91 and 21,430.62 is: 29,574.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,426.18 : 53,027.91 = 21,430.62 : x
  2. Step 2: Convert to fraction form
    38,426.18/53,027.91 = 21,430.62/x
  3. Step 3: Cross multiply
    38,426.18x = 53,027.91 × 21,430.62
  4. Step 4: Simplify right side
    38,426.18x = 1,136,420,988.60
  5. Step 5: Solve for x
    x = 1,136,420,988.60/38,426.18
  6. Step 6: Final answer
    x = 29,574.14

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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.