Home / 37,938.48-56,947.80-21,312.72

Finding the Fourth Proportional to 37,938.48, 56,947.80 and 21,312.72

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Solution

The fourth proportional to 37,938.48, 56,947.80 and 21,312.72 is: 31,991.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,938.48 : 56,947.80 = 21,312.72 : x
  2. Step 2: Convert to fraction form
    37,938.48/56,947.80 = 21,312.72/x
  3. Step 3: Cross multiply
    37,938.48x = 56,947.80 × 21,312.72
  4. Step 4: Simplify right side
    37,938.48x = 1,213,712,516.02
  5. Step 5: Solve for x
    x = 1,213,712,516.02/37,938.48
  6. Step 6: Final answer
    x = 31,991.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.