Home / 51,347.28-70,859.23-28,686.28

Finding the Fourth Proportional to 51,347.28, 70,859.23 and 28,686.28

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Solution

The fourth proportional to 51,347.28, 70,859.23 and 28,686.28 is: 39,587.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,347.28 : 70,859.23 = 28,686.28 : x
  2. Step 2: Convert to fraction form
    51,347.28/70,859.23 = 28,686.28/x
  3. Step 3: Cross multiply
    51,347.28x = 70,859.23 × 28,686.28
  4. Step 4: Simplify right side
    51,347.28x = 2,032,687,358.07
  5. Step 5: Solve for x
    x = 2,032,687,358.07/51,347.28
  6. Step 6: Final answer
    x = 39,587.05

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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.