Home / 51,030.23-70,422.89-28,368.36

Finding the Fourth Proportional to 51,030.23, 70,422.89 and 28,368.36

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Solution

The fourth proportional to 51,030.23, 70,422.89 and 28,368.36 is: 39,148.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,030.23 : 70,422.89 = 28,368.36 : x
  2. Step 2: Convert to fraction form
    51,030.23/70,422.89 = 28,368.36/x
  3. Step 3: Cross multiply
    51,030.23x = 70,422.89 × 28,368.36
  4. Step 4: Simplify right side
    51,030.23x = 1,997,781,753.92
  5. Step 5: Solve for x
    x = 1,997,781,753.92/51,030.23
  6. Step 6: Final answer
    x = 39,148.99

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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.