Home / 42,275.43-63,417.34-15,628.40

Finding the Fourth Proportional to 42,275.43, 63,417.34 and 15,628.40

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Solution

The fourth proportional to 42,275.43, 63,417.34 and 15,628.40 is: 23,444.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,275.43 : 63,417.34 = 15,628.40 : x
  2. Step 2: Convert to fraction form
    42,275.43/63,417.34 = 15,628.40/x
  3. Step 3: Cross multiply
    42,275.43x = 63,417.34 × 15,628.40
  4. Step 4: Simplify right side
    42,275.43x = 991,111,556.46
  5. Step 5: Solve for x
    x = 991,111,556.46/42,275.43
  6. Step 6: Final answer
    x = 23,444.15

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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.