Home / 28,606.77-39,477.28-15,859.63

Finding the Fourth Proportional to 28,606.77, 39,477.28 and 15,859.63

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Solution

The fourth proportional to 28,606.77, 39,477.28 and 15,859.63 is: 21,886.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,606.77 : 39,477.28 = 15,859.63 : x
  2. Step 2: Convert to fraction form
    28,606.77/39,477.28 = 15,859.63/x
  3. Step 3: Cross multiply
    28,606.77x = 39,477.28 × 15,859.63
  4. Step 4: Simplify right side
    28,606.77x = 626,095,077.84
  5. Step 5: Solve for x
    x = 626,095,077.84/28,606.77
  6. Step 6: Final answer
    x = 21,886.25

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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.