Home / 42,340.47-63,502.59-21,274.67

Finding the Fourth Proportional to 42,340.47, 63,502.59 and 21,274.67

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Solution

The fourth proportional to 42,340.47, 63,502.59 and 21,274.67 is: 31,907.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,340.47 : 63,502.59 = 21,274.67 : x
  2. Step 2: Convert to fraction form
    42,340.47/63,502.59 = 21,274.67/x
  3. Step 3: Cross multiply
    42,340.47x = 63,502.59 × 21,274.67
  4. Step 4: Simplify right side
    42,340.47x = 1,350,996,884.93
  5. Step 5: Solve for x
    x = 1,350,996,884.93/42,340.47
  6. Step 6: Final answer
    x = 31,907.94

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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.