Home / 37,235.70-51,386.40-21,319.20

Finding the Fourth Proportional to 37,235.70, 51,386.40 and 21,319.20

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Solution

The fourth proportional to 37,235.70, 51,386.40 and 21,319.20 is: 29,421.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,235.70 : 51,386.40 = 21,319.20 : x
  2. Step 2: Convert to fraction form
    37,235.70/51,386.40 = 21,319.20/x
  3. Step 3: Cross multiply
    37,235.70x = 51,386.40 × 21,319.20
  4. Step 4: Simplify right side
    37,235.70x = 1,095,516,938.88
  5. Step 5: Solve for x
    x = 1,095,516,938.88/37,235.70
  6. Step 6: Final answer
    x = 29,421.15

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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.