Home / 21,011,075.20-31,516,612.80-16,759,547.20

Finding the Fourth Proportional to 21,011,075.20, 31,516,612.80 and 16,759,547.20

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Solution

The fourth proportional to 21,011,075.20, 31,516,612.80 and 16,759,547.20 is: 25,139,320.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,011,075.20 : 31,516,612.80 = 16,759,547.20 : x
  2. Step 2: Convert to fraction form
    21,011,075.20/31,516,612.80 = 16,759,547.20/x
  3. Step 3: Cross multiply
    21,011,075.20x = 31,516,612.80 × 16,759,547.20
  4. Step 4: Simplify right side
    21,011,075.20x = 528,204,159,805,724.12
  5. Step 5: Solve for x
    x = 528,204,159,805,724.12/21,011,075.20
  6. Step 6: Final answer
    x = 25,139,320.80

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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.