Home / 31,070.40-42,878.28-16,924.26

Finding the Fourth Proportional to 31,070.40, 42,878.28 and 16,924.26

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Solution

The fourth proportional to 31,070.40, 42,878.28 and 16,924.26 is: 23,356.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,070.40 : 42,878.28 = 16,924.26 : x
  2. Step 2: Convert to fraction form
    31,070.40/42,878.28 = 16,924.26/x
  3. Step 3: Cross multiply
    31,070.40x = 42,878.28 × 16,924.26
  4. Step 4: Simplify right side
    31,070.40x = 725,683,159.07
  5. Step 5: Solve for x
    x = 725,683,159.07/31,070.40
  6. Step 6: Final answer
    x = 23,356.09

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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.