Home / 42,011.09-63,011.63-15,708.77

Finding the Fourth Proportional to 42,011.09, 63,011.63 and 15,708.77

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Solution

The fourth proportional to 42,011.09, 63,011.63 and 15,708.77 is: 23,561.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,011.09 : 63,011.63 = 15,708.77 : x
  2. Step 2: Convert to fraction form
    42,011.09/63,011.63 = 15,708.77/x
  3. Step 3: Cross multiply
    42,011.09x = 63,011.63 × 15,708.77
  4. Step 4: Simplify right side
    42,011.09x = 989,834,809.39
  5. Step 5: Solve for x
    x = 989,834,809.39/42,011.09
  6. Step 6: Final answer
    x = 23,561.28

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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.