Home / 21,045.51-31,595.85-14,070.33

Finding the Fourth Proportional to 21,045.51, 31,595.85 and 14,070.33

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Solution

The fourth proportional to 21,045.51, 31,595.85 and 14,070.33 is: 21,123.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,045.51 : 31,595.85 = 14,070.33 : x
  2. Step 2: Convert to fraction form
    21,045.51/31,595.85 = 14,070.33/x
  3. Step 3: Cross multiply
    21,045.51x = 31,595.85 × 14,070.33
  4. Step 4: Simplify right side
    21,045.51x = 444,564,036.13
  5. Step 5: Solve for x
    x = 444,564,036.13/21,045.51
  6. Step 6: Final answer
    x = 21,123.94

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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.