Home / 38,407.19-53,002.13-21,412.50

Finding the Fourth Proportional to 38,407.19, 53,002.13 and 21,412.50

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Solution

The fourth proportional to 38,407.19, 53,002.13 and 21,412.50 is: 29,549.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,407.19 : 53,002.13 = 21,412.50 : x
  2. Step 2: Convert to fraction form
    38,407.19/53,002.13 = 21,412.50/x
  3. Step 3: Cross multiply
    38,407.19x = 53,002.13 × 21,412.50
  4. Step 4: Simplify right side
    38,407.19x = 1,134,908,001.56
  5. Step 5: Solve for x
    x = 1,134,908,001.56/38,407.19
  6. Step 6: Final answer
    x = 29,549.37

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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.